init

Signed-off-by: Hadi <[email protected]>

.envrc

@@ -0,0 +1 @@
+use flake

.github/.goreleaser.yaml

@@ -0,0 +1,34 @@
+version: 2
+
+before:
+  hooks:
+    - go mod tidy
+
+builds:
+  - binary: settuings
+    main: ./cmd/settuings
+    env:
+      - CGO_ENABLED=0
+    goos:
+      - linux
+    goarch:
+      - amd64
+      - arm64
+    ldflags:
+      - -s -w -X main.version={{.Version}}
+
+archives:
+  - formats:
+      - tar.gz
+    name_template: "{{ .ProjectName }}_{{ .Os }}_{{ .Arch }}"
+
+checksum:
+  name_template: checksums.txt
+
+changelog:
+  sort: asc
+  filters:
+    exclude:
+      - "^docs:"
+      - "^test:"
+      - "^ci:"

.github/CONTRIBUTING.md

@@ -0,0 +1,10 @@
+# Contributing
+
+Everybody is invited and welcome to contribute. There is a lot to do... Check the issues!
+
+The process is straight-forward.
+
+- Read [How to get faster PR reviews](https://github.com/kubernetes/community/blob/master/contributors/guide/pull-requests.md#best-practices-for-faster-reviews) by Kubernetes (but skip step 0 and 1)
+- Fork this git repository
+- Write your changes (bug fixes, new features, ...).
+- Create a Pull Request against the main branch.

.github/FUNDING.yml

@@ -0,0 +1 @@
+ko_fi: anotherhadi

.github/ISSUE_TEMPLATE/bug_report.yml

@@ -0,0 +1,57 @@
+name: "🐞 Bug Report"
+description: Report a reproducible error
+title: "[BUG] "
+labels: ["bug"]
+body:
+  - type: textarea
+    id: description
+    attributes:
+      label: Describe the bug
+      description: A clear and concise description of the issue.
+    validations:
+      required: true
+
+  - type: textarea
+    id: steps
+    attributes:
+      label: Steps to reproduce
+      description: Step-by-step instructions to trigger the bug.
+      placeholder: |
+        1. ...
+        2. ...
+        3. See error
+    validations:
+      required: true
+
+  - type: textarea
+    id: expected
+    attributes:
+      label: Expected behavior
+      description: What should have happened instead.
+    validations:
+      required: true
+
+  - type: input
+    id: os
+    attributes:
+      label: Operating system
+      placeholder: "e.g. Ubuntu 24.04, macOS 15"
+    validations:
+      required: true
+
+  - type: input
+    id: version
+    attributes:
+      label: settuings version
+      description: Output of `settuings -v`
+      placeholder: "e.g. v0.3.1"
+    validations:
+      required: true
+
+  - type: textarea
+    id: additional
+    attributes:
+      label: Additional context
+      description: Logs, screenshots, or anything else relevant.
+    validations:
+      required: false

.github/ISSUE_TEMPLATE/feature_request.yml

@@ -0,0 +1,37 @@
+name: "🚀 Feature Request"
+description: Suggest an idea for this project
+title: "[FEATURE] "
+labels: ["enhancement"]
+body:
+  - type: textarea
+    id: problem
+    attributes:
+      label: Problem
+      description: Is your feature request related to a problem? Describe it.
+      placeholder: "I'm always frustrated when..."
+    validations:
+      required: false
+
+  - type: textarea
+    id: solution
+    attributes:
+      label: Proposed solution
+      description: A clear description of what you want to happen.
+    validations:
+      required: true
+
+  - type: textarea
+    id: alternatives
+    attributes:
+      label: Alternatives considered
+      description: Any alternative solutions or features you've thought about.
+    validations:
+      required: false
+
+  - type: textarea
+    id: additional
+    attributes:
+      label: Additional context
+      description: Mockups, related issues, or anything else relevant.
+    validations:
+      required: false

.github/scripts/inject-exec.py

@@ -0,0 +1,33 @@
+#!/usr/bin/env python3
+import re
+import subprocess
+import sys
+from pathlib import Path
+
+PATTERN = re.compile(r"<!-- exec: (.+?) -->.*?<!-- endexec -->", re.DOTALL)
+
+
+def replace(match):
+    cmd = match.group(1).strip()
+    result = subprocess.run(cmd, shell=True, capture_output=True, text=True)
+    output = result.stdout
+    if result.returncode != 0:
+        print(f"[inject-exec] command failed ({result.returncode}): {cmd}", file=sys.stderr)
+        print(result.stderr, file=sys.stderr)
+        sys.exit(1)
+    output = re.sub(r"<!-- exec: .+? -->\n?|<!-- endexec -->\n?", "", output)
+    if output and not output.endswith("\n"):
+        output += "\n"
+    return f"<!-- exec: {cmd} -->\n{output}<!-- endexec -->"
+
+
+def process(path):
+    content = Path(path).read_text()
+    new_content = PATTERN.sub(replace, content)
+    if new_content != content:
+        Path(path).write_text(new_content)
+        print(f"[inject-exec] updated {path}")
+
+
+for p in sys.argv[1:]:
+    process(p)

.github/workflows/release.yml

@@ -0,0 +1,28 @@
+name: Release
+
+on:
+  push:
+    tags:
+      - "v*"
+
+permissions:
+  contents: write
+
+jobs:
+  release:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - uses: actions/setup-go@v5
+        with:
+          go-version-file: go.mod
+
+      - uses: goreleaser/goreleaser-action@v6
+        with:
+          version: "~> v2"
+          args: release --clean --config .github/.goreleaser.yaml
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

.gitignore

@@ -0,0 +1,4 @@
+.claude/
+CLAUDE.md
+result/
+.pre-commit-config.yaml

LICENSE

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2026 Hadi
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

README.md

@@ -0,0 +1,128 @@
+<div align="center">
+    <img alt="logo" src="./.github/assets/logo.png" width="120px" />
+</div>
+
+<br>
+
+# SetTUIngs
+
+> A TUI to manage your Linux system settings like wifi, bluetooth, and more, without leaving the terminal.
+
+![GitHub Stars](https://www.shieldcn.dev/github/stars/anotherhadi/settuings.svg?variant=outline&theme=violet)
+![Release](https://www.shieldcn.dev/github/release/anotherhadi/settuings.svg?variant=outline&theme=violet)
+![CI](https://www.shieldcn.dev/github/ci/anotherhadi/settuings.svg?variant=outline&theme=violet)
+[![Ko-fi](https://www.shieldcn.dev/badge/Ko--fi-sponsor-FF5E5B.svg?logo=kofi&variant=secondary&theme=violet)](https://ko-fi.com/anotherhadi)
+
+<!-- START doctoc generated TOC please keep comment here to allow auto update -->
+<!-- DON'T EDIT THIS SECTION, INSTEAD RE-RUN doctoc TO UPDATE -->
+
+- [What is Spilltea?](#what-is-settuings)
+- [Legal Disclaimer](#legal-disclaimer)
+- [Features](#features)
+- [Installation](#installation)
+- [Project Management](#project-management)
+- [Configuration](#configuration)
+  - [Per-project configuration](#per-project-configuration)
+- [CLI Flags](#cli-flags)
+- [Plugin System](#plugin-system)
+- [Vim / Neovim Integration](#vim--neovim-integration)
+- [Deployment](#deployment)
+- [Tech Stack](#tech-stack)
+
+<!-- END doctoc generated TOC please keep comment here to allow auto update -->
+
+## What is SetTUIngs?
+
+SetTUIngs is a keyboard-driven TUI for the everyday Linux system settings you'd otherwise dig through a GUI panel for: WiFi, Ethernet, VPN, Bluetooth, and audio. Every page is a thin, readable wrapper around the CLI tools you already have installed (`nmcli`, `bluetoothctl`, and `wpctl`), so there's no background daemon or D-Bus client library involved, and it always reflects whatever changed things elsewhere (a NetworkManager applet, `pavucontrol`, another terminal).
+
+<img alt="demo" src="./.github/assets/demo.gif" width="700" />
+
+## Features
+
+- **WiFi**: Scan, connect, and manage networks, including signal strength, security, saved passwords, and known networks, with the radio toggled on/off in one keystroke.
+- **Ethernet & VPN**: Bring interfaces up or down and connect to VPN profiles from the same Network page.
+- **Bluetooth**: Discover, pair, connect, trust, and forget devices, and power the adapter on/off.
+- **Audio**: Adjust output/input volume, mute, and pick the default speaker or mic; preview a device with a test tone or a live input-level meter; control the volume of individual apps (browser tab, Spotify, etc.) independently.
+- **Vim-like Navigation**: The entire interface is keyboard-driven with Vim-inspired shortcuts. Use `h/j/k/l` to move, `gg`/`G` to jump to the top/bottom, `/` to search, `q` to close panels, and more. All keybindings are fully customizable via the config file.
+
+## Installation
+
+<details>
+<summary>Go install</summary>
+
+```sh
+go install github.com/anotherhadi/settuings/cmd/settuings@latest
+```
+
+Requires Go 1.22+. The binary will be placed in `$GOPATH/bin` (or `~/go/bin`).
+
+</details>
+
+<details>
+<summary>Nix (temporary run, no install)</summary>
+
+```sh
+nix run github:anotherhadi/settuings
+```
+
+</details>
+
+<details>
+<summary>NixOS (flake)</summary>
+
+Add settuings to your flake inputs:
+
+```nix
+inputs.settuings.url = "github:anotherhadi/settuings";
+```
+
+Then add the package to your system or home-manager packages:
+
+```nix
+environment.systemPackages = [ inputs.settuings.packages.${pkgs.system}.default ];
+```
+
+</details>
+
+## CLI Flags
+
+<!-- exec: echo '```' && go run ./cmd/settuings -h && echo '```' -->
+
+```
+A minimal, terminal-based HTTP(S) proxy for pentesters and CTF players.
+
+Usage:
+  spilltea [flags]
+
+Flags:
+      --add-default-config      copy the default config file to the config path and exit
+      --add-default-plugins     copy built-in example plugins into the plugins dir and exit
+  -c, --config string           path to config file
+  -h, --help                    help for spilltea
+      --host string             proxy host (overrides config)
+      --plugins-dir string      path to plugins dir (overrides config)
+  -p, --port int                proxy port (overrides config)
+  -P, --project string          project name to open directly, or "tmp" for a temporary session
+      --ssl-insecure            skip TLS certificate verification (overrides config)
+      --upstream-proxy string   upstream proxy URL, e.g. http://user:pass@host:8888 (overrides config)
+  -v, --version                 version for spilltea
+```
+
+<!-- endexec -->
+
+## Tech Stack
+
+| Component | Library                                                 |
+| --------- | ------------------------------------------------------- |
+| TUI       | [bubbletea](https://github.com/charmbracelet/bubbletea) |
+| Styles    | [lipgloss](https://github.com/charmbracelet/lipgloss)   |
+| Config    | [viper](https://github.com/spf13/viper)                 |
+| Plugins   | [gopher-lua](https://github.com/yuin/gopher-lua)        |
+
+---
+
+<div align="center">
+  <a href="https://github.com/anotherhadi/settuings">github</a> |
+  <a href="https://gitlab.com/anotherhadi_mirror/settuings">gitlab (mirror)</a> |
+  <a href="https://git.hadi.icu/anotherhadi/settuings">gitea (mirror)</a>
+</div

cmd/settuings/main.go

@@ -0,0 +1,94 @@
+package main
+
+import (
+	"fmt"
+	"os"
+	"path/filepath"
+	"runtime/debug"
+	"strings"
+
+	tea "charm.land/bubbletea/v2"
+	"github.com/anotherhadi/settuings/internal/config"
+	"github.com/anotherhadi/settuings/internal/icons"
+	"github.com/anotherhadi/settuings/internal/keys"
+	"github.com/anotherhadi/settuings/internal/style"
+	appUI "github.com/anotherhadi/settuings/internal/ui/app"
+	"github.com/spf13/cobra"
+)
+
+// Version is overwritten at build time by goreleaser/ldflag with the current version tag, or "dev" if not set.
+var version = "dev"
+
+func init() {
+	if version != "dev" {
+		return
+	}
+	if info, ok := debug.ReadBuildInfo(); ok && info.Main.Version != "" && info.Main.Version != "(devel)" {
+		version = info.Main.Version
+	}
+}
+
+func main() {
+	var (
+		flagConfig           string
+		flagAddDefaultConfig bool
+		flagPage             string
+	)
+
+	rootCmd := &cobra.Command{
+		Use:           "settuings",
+		Short:         "A TUI to manage your Linux system settings like wifi, bluetooth, and more, without leaving the terminal.",
+		Version:       version,
+		SilenceUsage:  true,
+		SilenceErrors: true,
+		RunE: func(cmd *cobra.Command, args []string) error {
+			home, _ := os.UserHomeDir()
+			cfgPath := filepath.Join(home, ".config", "settuings", "config.yaml")
+			if flagConfig != "" {
+				cfgPath = flagConfig
+			}
+
+			if flagAddDefaultConfig {
+				if err := config.WriteDefaultConfig(cfgPath); err != nil {
+					return fmt.Errorf("add-default-config: %w", err)
+				}
+				fmt.Printf("default config written to %s\n", cfgPath)
+				return nil
+			}
+
+			if err := config.Load(cfgPath); err != nil {
+				return fmt.Errorf("config: %w", err)
+			}
+			config.Global.Version = version
+
+			style.Init()
+			icons.Init(config.Global)
+			keys.Init(config.Global)
+
+			m, err := appUI.New(flagPage)
+			if err != nil {
+				return err
+			}
+
+			final, err := tea.NewProgram(m).Run()
+			if err != nil {
+				return fmt.Errorf("tui: %w", err)
+			}
+			if app, ok := final.(appUI.Model); ok {
+				if ferr := app.FatalErr(); ferr != nil {
+					return ferr
+				}
+			}
+			return nil
+		},
+	}
+
+	rootCmd.Flags().StringVarP(&flagConfig, "config", "c", "", "path to config file")
+	rootCmd.Flags().BoolVar(&flagAddDefaultConfig, "add-default-config", false, "copy the default config file to the config path and exit")
+	rootCmd.Flags().StringVarP(&flagPage, "page", "p", "", fmt.Sprintf("page to open at launch (%s)", strings.Join(appUI.PageNames(), ", ")))
+
+	if err := rootCmd.Execute(); err != nil {
+		fmt.Fprintln(os.Stderr, err)
+		os.Exit(1)
+	}
+}

docs/about.md

@@ -0,0 +1,25 @@
+```txt
+⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢀⡀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
+⠀⠀⠀⢀⣴⣾⣦⣀⣀⣠⣿⣿⣷⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
+⠀⠀⠀⠈⢻⣿⣿⣿⣿⣿⣿⣿⣧⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
+⠀⠀⠀⢀⣾⣿⡿⠋⠁⠈⠙⢿⣿⣷⣶⣶⡆⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
+⠀⢸⣿⣿⣿⣿⡇⠀⠀⠀⠀⢸⣿⣿⣿⣿⡇⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
+⠀⠘⠛⠛⠻⣿⣷⣤⣀⣀⣴⣿⣿⠏
+⠀⠀⠀⠀⠀⣾⣿⣿⡿⠿⢿⣿⣿⣷
+⠀⠀⠀⠀⠸⠿⣿⡿⠀⠀⠀⠻⠿⠋
+```
+
+# About
+
+A TUI to manage your Linux system settings like wifi, bluetooth, and more, without leaving the terminal.
+
+- **Version**: `{{.Cfg.Version}}`
+- **Repository**: `https://github.com/anotherhadi/settuings`
+- **Sponsor this project**: `https://ko-fi.com/anotherhadi`
+
+## System
+
+- **OS**: `{{.OS}}`
+- **Kernel**: `{{.Kernel}}`
+- **Hostname**: `{{.Hostname}}`
+- **Architecture**: `{{.Arch}}`

flake.lock

@@ -0,0 +1,120 @@
+{
+  "nodes": {
+    "flake-compat": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1767039857,
+        "narHash": "sha256-vNpUSpF5Nuw8xvDLj2KCwwksIbjua2LZCqhV1LNRDns=",
+        "owner": "NixOS",
+        "repo": "flake-compat",
+        "rev": "5edf11c44bc78a0d334f6334cdaf7d60d732daab",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "repo": "flake-compat",
+        "type": "github"
+      }
+    },
+    "flake-utils": {
+      "inputs": {
+        "systems": "systems"
+      },
+      "locked": {
+        "lastModified": 1731533236,
+        "narHash": "sha256-l0KFg5HjrsfsO/JpG+r7fRrqm12kzFHyUHqHCVpMMbI=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "11707dc2f618dd54ca8739b309ec4fc024de578b",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
+    "git-hooks": {
+      "inputs": {
+        "flake-compat": "flake-compat",
+        "nixpkgs": [
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1784288435,
+        "narHash": "sha256-ReRHaLgr/uVqdD8afFSn+myXIfpHeOhP0yYe0TJqAA8=",
+        "owner": "cachix",
+        "repo": "git-hooks.nix",
+        "rev": "43b3c1ab9d40fb1dbb008f451988a91e375825e9",
+        "type": "github"
+      },
+      "original": {
+        "owner": "cachix",
+        "repo": "git-hooks.nix",
+        "type": "github"
+      }
+    },
+    "gomod2nix": {
+      "inputs": {
+        "flake-utils": "flake-utils",
+        "nixpkgs": [
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1770585520,
+        "narHash": "sha256-yBz9Ozd5Wb56i3e3cHZ8WcbzCQ9RlVaiW18qDYA/AzA=",
+        "owner": "nix-community",
+        "repo": "gomod2nix",
+        "rev": "1201ddd1279c35497754f016ef33d5e060f3da8d",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-community",
+        "repo": "gomod2nix",
+        "type": "github"
+      }
+    },
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1786384358,
+        "narHash": "sha256-RzPPiWeUtuvymnpuEWsdtzli5w4kjZs49FqEs3/1u+I=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "2fcb964de67fcf60b43471c55d5d99e61a9ccb5a",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixos-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "git-hooks": "git-hooks",
+        "gomod2nix": "gomod2nix",
+        "nixpkgs": "nixpkgs"
+      }
+    },
+    "systems": {
+      "locked": {
+        "lastModified": 1681028828,
+        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
+        "owner": "nix-systems",
+        "repo": "default",
+        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-systems",
+        "repo": "default",
+        "type": "github"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}

flake.nix

@@ -0,0 +1,42 @@
+{
+  description = "A TUI to manage your Linux system settings like wifi, bluetooth, and more, without leaving the terminal.";
+
+  inputs = {
+    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
+    gomod2nix = {
+      url = "github:nix-community/gomod2nix";
+      inputs.nixpkgs.follows = "nixpkgs";
+    };
+    git-hooks = {
+      url = "github:cachix/git-hooks.nix";
+      inputs.nixpkgs.follows = "nixpkgs";
+    };
+  };
+
+  outputs = {
+    self,
+    nixpkgs,
+    gomod2nix,
+    git-hooks,
+  }: let
+    supportedSystems = ["x86_64-linux" "aarch64-linux"];
+
+    forAllSystems = f:
+      nixpkgs.lib.genAttrs supportedSystems
+      (system: f system (import nixpkgs {inherit system;}));
+  in {
+    packages = forAllSystems (system: pkgs:
+      import ./nix/package.nix {
+        inherit pkgs;
+        buildGoApplication = gomod2nix.legacyPackages.${system}.buildGoApplication;
+      });
+
+    devShells = forAllSystems (system: pkgs: {
+      default = import ./nix/shell.nix {
+        inherit pkgs;
+        gitHooksLib = git-hooks.lib.${system};
+        gomod2nixPkgs = gomod2nix.legacyPackages.${system};
+      };
+    });
+  };
+}

go.mod

@@ -0,0 +1,55 @@
+module github.com/anotherhadi/settuings
+
+go 1.26.2
+
+require (
+	charm.land/bubbles/v2 v2.1.0
+	charm.land/bubbletea/v2 v2.0.6
+	charm.land/glamour/v2 v2.0.0
+	charm.land/lipgloss/v2 v2.0.3
+	github.com/anotherhadi/ilovetui v0.1.6
+	github.com/charmbracelet/x/ansi v0.11.7
+	github.com/sirupsen/logrus v1.9.4
+	github.com/spf13/cobra v1.10.2
+	github.com/spf13/viper v1.21.0
+	gopkg.in/yaml.v3 v3.0.1
+)
+
+require (
+	github.com/alecthomas/chroma/v2 v2.24.1 // indirect
+	github.com/atotto/clipboard v0.1.4 // indirect
+	github.com/aymerick/douceur v0.2.0 // indirect
+	github.com/charmbracelet/colorprofile v0.4.3 // indirect
+	github.com/charmbracelet/ultraviolet v0.0.0-20260511121909-c840852527f3 // indirect
+	github.com/charmbracelet/x/exp/slice v0.0.0-20260517005351-920740d613be // indirect
+	github.com/charmbracelet/x/term v0.2.2 // indirect
+	github.com/charmbracelet/x/termios v0.1.1 // indirect
+	github.com/charmbracelet/x/windows v0.2.2 // indirect
+	github.com/clipperhouse/displaywidth v0.11.0 // indirect
+	github.com/clipperhouse/uax29/v2 v2.7.0 // indirect
+	github.com/dlclark/regexp2 v1.12.0 // indirect
+	github.com/fsnotify/fsnotify v1.10.1 // indirect
+	github.com/go-viper/mapstructure/v2 v2.5.0 // indirect
+	github.com/gorilla/css v1.0.1 // indirect
+	github.com/inconshreveable/mousetrap v1.1.0 // indirect
+	github.com/lucasb-eyer/go-colorful v1.4.0 // indirect
+	github.com/mattn/go-runewidth v0.0.23 // indirect
+	github.com/microcosm-cc/bluemonday v1.0.27 // indirect
+	github.com/muesli/cancelreader v0.2.2 // indirect
+	github.com/pelletier/go-toml/v2 v2.3.1 // indirect
+	github.com/rivo/uniseg v0.4.7 // indirect
+	github.com/sagikazarmark/locafero v0.12.0 // indirect
+	github.com/spf13/afero v1.15.0 // indirect
+	github.com/spf13/cast v1.10.0 // indirect
+	github.com/spf13/pflag v1.0.10 // indirect
+	github.com/subosito/gotenv v1.6.0 // indirect
+	github.com/xo/terminfo v0.0.0-20220910002029-abceb7e1c41e // indirect
+	github.com/yuin/goldmark v1.8.2 // indirect
+	github.com/yuin/goldmark-emoji v1.0.6 // indirect
+	go.yaml.in/yaml/v3 v3.0.4 // indirect
+	golang.org/x/net v0.55.0 // indirect
+	golang.org/x/sync v0.20.0 // indirect
+	golang.org/x/sys v0.45.0 // indirect
+	golang.org/x/text v0.37.0 // indirect
+	gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c // indirect
+)

go.sum

@@ -0,0 +1,129 @@
+charm.land/bubbles/v2 v2.1.0 h1:YSnNh5cPYlYjPxRrzs5VEn3vwhtEn3jVGRBT3M7/I0g=
+charm.land/bubbles/v2 v2.1.0/go.mod h1:l97h4hym2hvWBVfmJDtrEHHCtkIKeTEb3TTJ4ZOB3wY=
+charm.land/bubbletea/v2 v2.0.6 h1:UHN/91OyuhaOFGSrBXQ/hMZD8IO1Uc4BvHlgHXL2WJo=
+charm.land/bubbletea/v2 v2.0.6/go.mod h1:MH/D8ZLlN3op37vQvijKuU29g3rqTp+aQapURFonF9g=
+charm.land/glamour/v2 v2.0.0 h1:IDBoqLEy7Hdpb9VOXN+khLP/XSxtJy1VsHuW/yF87+U=
+charm.land/glamour/v2 v2.0.0/go.mod h1:kjq9WB0s8vuUYZNYey2jp4Lgd9f4cKdzAw88FZtpj/w=
+charm.land/lipgloss/v2 v2.0.3 h1:yM2zJ4Cf5Y51b7RHIwioil4ApI/aypFXXVHSwlM6RzU=
+charm.land/lipgloss/v2 v2.0.3/go.mod h1:7myLU9iG/3xluAWzpY/fSxYYHCgoKTie7laxk6ATwXA=
+github.com/MakeNowJust/heredoc v1.0.0 h1:cXCdzVdstXyiTqTvfqk9SDHpKNjxuom+DOlyEeQ4pzQ=
+github.com/MakeNowJust/heredoc v1.0.0/go.mod h1:mG5amYoWBHf8vpLOuehzbGGw0EHxpZZ6lCpQ4fNJ8LE=
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+github.com/alecthomas/repr v0.5.2 h1:SU73FTI9D1P5UNtvseffFSGmdNci/O6RsqzeXJtP0Qs=
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+golang.org/x/net v0.55.0 h1:bcvxaJn3e1U6InsFWt1JUq1aSjnRxLzT2rtD2KfkDF8=
+golang.org/x/net v0.55.0/go.mod h1:L5U2KuzuOe1lY7Z+aWVIKK6qEeJXnXV9yzGA+WCHJww=
+golang.org/x/sync v0.20.0 h1:e0PTpb7pjO8GAtTs2dQ6jYa5BWYlMuX047Dco/pItO4=
+golang.org/x/sync v0.20.0/go.mod h1:9xrNwdLfx4jkKbNva9FpL6vEN7evnE43NNNJQ2LF3+0=
+golang.org/x/sys v0.45.0 h1:dO4czNzziLiiXplLQgBCEpCvXQ3dnkn0SdaZSYdQ+FY=
+golang.org/x/sys v0.45.0/go.mod h1:4GL1E5IUh+htKOUEOaiffhrAeqysfVGipDYzABqnCmw=
+golang.org/x/text v0.37.0 h1:Cqjiwd9eSg8e0QAkyCaQTNHFIIzWtidPahFWR83rTrc=
+golang.org/x/text v0.37.0/go.mod h1:a5sjxXGs9hsn/AJVwuElvCAo9v8QYLzvavO5z2PiM38=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c h1:Hei/4ADfdWqJk1ZMxUNpqntNwaWcugrBjAiHlqqRiVk=
+gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c/go.mod h1:JHkPIbrfpd72SG/EVd6muEfDQjcINNoR0C8j2r3qZ4Q=
+gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
+gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

internal/audio/devices.go

@@ -0,0 +1,99 @@
+package audio
+
+import (
+	"fmt"
+	"regexp"
+	"strconv"
+	"strings"
+)
+
+// Device is one physical/virtual audio sink (output) or source (input), as
+// listed under wpctl status's Sinks/Sources sections.
+type Device struct {
+	ID      string
+	Name    string
+	Default bool
+	Volume  int // 0-100
+	Muted   bool
+}
+
+// ListSinks returns the available audio output devices.
+func ListSinks() ([]Device, error) {
+	return listDevices("Sinks:")
+}
+
+// ListSources returns the available audio input devices.
+func ListSources() ([]Device, error) {
+	return listDevices("Sources:")
+}
+
+func listDevices(header string) ([]Device, error) {
+	out, err := status()
+	if err != nil {
+		return nil, err
+	}
+	entries := parseSection(out, header)
+	devices := make([]Device, 0, len(entries))
+	for _, e := range entries {
+		devices = append(devices, Device{
+			ID:      e.ID,
+			Name:    e.Name,
+			Default: e.Default,
+			Volume:  e.Volume,
+			Muted:   e.Muted,
+		})
+	}
+	return devices, nil
+}
+
+var volumeLineRe = regexp.MustCompile(`^Volume:\s+([0-9.]+)(\s+\[MUTED\])?`)
+
+// GetVolume returns id's current volume (0-100) and mute state.
+func GetVolume(id string) (int, bool, error) {
+	out, err := run("get-volume", id)
+	if err != nil {
+		return 0, false, err
+	}
+	m := volumeLineRe.FindStringSubmatch(strings.TrimSpace(out))
+	if m == nil {
+		return 0, false, fmt.Errorf("unexpected wpctl get-volume output: %q", out)
+	}
+	v, err := strconv.ParseFloat(m[1], 64)
+	if err != nil {
+		return 0, false, err
+	}
+	return int(v*100 + 0.5), m[2] != "", nil
+}
+
+// SetVolume sets id's volume to an absolute percentage, clamped to [0, 100].
+func SetVolume(id string, pct int) error {
+	if pct < 0 {
+		pct = 0
+	} else if pct > 100 {
+		pct = 100
+	}
+	_, err := run("set-volume", id, strconv.Itoa(pct)+"%")
+	return err
+}
+
+// SetMute sets id's mute state explicitly.
+func SetMute(id string, mute bool) error {
+	state := "0"
+	if mute {
+		state = "1"
+	}
+	_, err := run("set-mute", id, state)
+	return err
+}
+
+// ToggleMute flips id's current mute state.
+func ToggleMute(id string) error {
+	_, err := run("set-mute", id, "toggle")
+	return err
+}
+
+// SetDefault makes id the default sink or source for its kind.
+func SetDefault(id string) error {
+	_, err := run("set-default", id)
+	return err
+}

internal/audio/level.go

@@ -0,0 +1,87 @@
+package audio
+
+import (
+	"encoding/binary"
+	"io"
+	"math"
+	"os/exec"
+	"strconv"
+)
+
+// levelSampleRate and levelFrameSamples pick a small chunk size (~100ms) so
+// the UI can poll for a fresh peak reading at a responsive rate without
+// reading much audio data.
+const (
+	levelSampleRate  = 16000
+	levelFrameFrames = levelSampleRate / 10 // 100ms
+	levelFrameBytes  = levelFrameFrames * 4 // 4 bytes per float32 sample
+)
+
+// LevelMonitor streams raw audio from a source and reports its peak
+// amplitude in short chunks, for a live input-level meter. Callers must call
+// Stop when done to release the underlying pw-cat process.
+type LevelMonitor struct {
+	cmd    *exec.Cmd
+	stdout io.ReadCloser
+}
+
+// StartLevelMonitor begins capturing raw audio from sourceID.
+func StartLevelMonitor(sourceID string) (*LevelMonitor, error) {
+	target, err := nodeTarget(sourceID)
+	if err != nil {
+		return nil, err
+	}
+
+	cmd := exec.Command("pw-cat", // #nosec G204 -- target is a node.name read back from `wpctl inspect`, never shell-interpreted
+		"--record",
+		"--target", target,
+		"--format", "f32",
+		"--rate", strconv.Itoa(levelSampleRate),
+		"--channels", "1",
+		"--raw",
+		"-",
+	)
+
+	stdout, err := cmd.StdoutPipe()
+	if err != nil {
+		return nil, err
+	}
+	if err := cmd.Start(); err != nil {
+		return nil, err
+	}
+	return &LevelMonitor{cmd: cmd, stdout: stdout}, nil
+}
+
+// Next blocks until one ~100ms chunk of audio has been captured and returns
+// its peak amplitude as a value in [0, 1]. It returns an error once the
+// monitor is stopped or the source disappears.
+func (l *LevelMonitor) Next() (float64, error) {
+	buf := make([]byte, levelFrameBytes)
+	n, err := io.ReadFull(l.stdout, buf)
+	if n == 0 {
+		return 0, err
+	}
+
+	var peak float32
+	for i := 0; i+4 <= n; i += 4 {
+		v := math.Float32frombits(binary.LittleEndian.Uint32(buf[i : i+4]))
+		if v < 0 {
+			v = -v
+		}
+		if v > peak {
+			peak = v
+		}
+	}
+	if peak > 1 {
+		peak = 1
+	}
+	return float64(peak), nil
+}
+
+// Stop terminates the capture process. Safe to call more than once.
+func (l *LevelMonitor) Stop() {
+	if l.cmd.Process != nil {
+		_ = l.cmd.Process.Kill()
+	}
+	_ = l.cmd.Wait()
+}

internal/audio/play.go

@@ -0,0 +1,97 @@
+package audio
+
+import (
+	"bytes"
+	"context"
+	"encoding/binary"
+	"math"
+	"os/exec"
+)
+
+const sampleRate = 44100
+
+// toneStep is one segment of the test chime: a tone at freqHz lasting dur,
+// with a short fade in/out to avoid clicks.
+type toneStep struct {
+	freqHz float64
+	dur    float64 // seconds
+}
+
+// testChime is a short two-tone "ding-dong" beep, the same shape used by
+// most desktop sound settings panels to preview an output device.
+var testChime = []toneStep{
+	{freqHz: 880, dur: 0.15},
+	{freqHz: 660, dur: 0.22},
+}
+
+// PlayTestTone plays a short chime through the given sink, without changing
+// the system default output.
+func PlayTestTone(sinkID string) error {
+	target, err := nodeTarget(sinkID)
+	if err != nil {
+		return err
+	}
+
+	ctx, cancel := context.WithTimeout(context.Background(), defaultTimeout)
+	defer cancel()
+
+	cmd := exec.CommandContext(ctx, "pw-play", "--target", target, "-") // #nosec G204 -- target is a node.name read back from `wpctl inspect`, never shell-interpreted
+	cmd.Stdin = bytes.NewReader(synthChime(testChime))
+	return cmd.Run()
+}
+
+// synthChime renders steps as a 16-bit PCM mono WAV file in memory.
+func synthChime(steps []toneStep) []byte {
+	const amplitude = 0.35 * 32767
+	const fade = 0.015 // seconds of fade in/out per step, to avoid clicks
+
+	var samples []int16
+	for _, step := range steps {
+		n := int(step.dur * sampleRate)
+		for i := 0; i < n; i++ {
+			t := float64(i) / sampleRate
+			env := 1.0
+			if t < fade {
+				env = t / fade
+			} else if remaining := step.dur - t; remaining < fade {
+				env = remaining / fade
+			}
+			v := amplitude * env * math.Sin(2*math.Pi*step.freqHz*t)
+			samples = append(samples, int16(v))
+		}
+	}
+
+	pcm := make([]byte, len(samples)*2)
+	for i, s := range samples {
+		binary.LittleEndian.PutUint16(pcm[i*2:], uint16(s))
+	}
+
+	var buf bytes.Buffer
+	buf.WriteString("RIFF")
+	writeU32(&buf, uint32(36+len(pcm)))
+	buf.WriteString("WAVE")
+	buf.WriteString("fmt ")
+	writeU32(&buf, 16)
+	writeU16(&buf, 1) // PCM
+	writeU16(&buf, 1) // mono
+	writeU32(&buf, sampleRate)
+	writeU32(&buf, sampleRate*2)
+	writeU16(&buf, 2)  // block align
+	writeU16(&buf, 16) // bits per sample
+	buf.WriteString("data")
+	writeU32(&buf, uint32(len(pcm)))
+	buf.Write(pcm)
+	return buf.Bytes()
+}
+
+func writeU32(buf *bytes.Buffer, v uint32) {
+	var b [4]byte
+	binary.LittleEndian.PutUint32(b[:], v)
+	buf.Write(b[:])
+}
+
+func writeU16(buf *bytes.Buffer, v uint16) {
+	var b [2]byte
+	binary.LittleEndian.PutUint16(b[:], v)
+	buf.Write(b[:])
+}

internal/audio/status.go

@@ -0,0 +1,97 @@
+package audio
+
+import (
+	"regexp"
+	"strconv"
+	"strings"
+)
+
+// statusEntry is one line parsed out of a `wpctl status` section (Sinks,
+// Sources, or Streams).
+type statusEntry struct {
+	ID        string
+	Default   bool
+	Name      string
+	Volume    int // 0-100, only meaningful when HasVolume is true
+	Muted     bool
+	HasVolume bool
+}
+
+// entryLineRe matches one tree entry, e.g.:
+//
+//	" │  *   57. Ryzen HD Audio Controller Speaker   [vol: 0.90 MUTED]"
+//	"      110. pw-play"
+//
+// Leading tree-drawing characters and the optional "*" (default marker) are
+// stripped; the remainder is the id and the free-form rest of the line.
+var entryLineRe = regexp.MustCompile(`^[\s│├└─]*(\*)?\s*(\d+)\.\s+(.+)$`)
+
+var volBracketRe = regexp.MustCompile(`^(.*?)\s*\[vol:\s*([0-9.]+)(\s+MUTED)?\]$`)
+
+// status returns the raw output of `wpctl status`.
+func status() (string, error) {
+	return run("status")
+}
+
+// parseSection extracts the entries listed under headerLine (e.g. "Sinks:",
+// "Sources:", "Streams:") within the "Audio" domain block of `wpctl status`
+// output, stopping at the first blank line. Port/link sub-lines (which
+// contain " > ") are tree children of a stream entry, not entries of their
+// own, and are skipped.
+func parseSection(out, headerLine string) []statusEntry {
+	lines := strings.Split(out, "\n")
+
+	audioStart := -1
+	for i, l := range lines {
+		if strings.TrimSpace(l) == "Audio" {
+			audioStart = i
+			break
+		}
+	}
+	if audioStart == -1 {
+		return nil
+	}
+
+	sectionStart := -1
+	for i := audioStart; i < len(lines); i++ {
+		if strings.HasSuffix(strings.TrimSpace(lines[i]), headerLine) {
+			sectionStart = i + 1
+			break
+		}
+	}
+	if sectionStart == -1 {
+		return nil
+	}
+
+	var entries []statusEntry
+	for i := sectionStart; i < len(lines); i++ {
+		line := lines[i]
+		trimmed := strings.TrimSpace(line)
+		// A blank line ends the whole Audio block (e.g. after Streams:); a
+		// line ending in ":" is the next section header (e.g. "Sources:").
+		// Either marks the end of this section.
+		if trimmed == "" || strings.HasSuffix(trimmed, ":") {
+			break
+		}
+		m := entryLineRe.FindStringSubmatch(line)
+		if m == nil {
+			continue
+		}
+		id, isDefault, rest := m[2], m[1] == "*", strings.TrimSpace(m[3])
+		if strings.Contains(rest, " > ") {
+			continue // a port/link sub-line, not an entry
+		}
+
+		entry := statusEntry{ID: id, Default: isDefault, Name: rest}
+		if vm := volBracketRe.FindStringSubmatch(rest); vm != nil {
+			entry.Name = strings.TrimSpace(vm[1])
+			if v, err := strconv.ParseFloat(vm[2], 64); err == nil {
+				entry.Volume = int(v*100 + 0.5)
+				entry.HasVolume = true
+			}
+			entry.Muted = vm[3] != ""
+		}
+		entries = append(entries, entry)
+	}
+	return entries
+}

internal/audio/streams.go

@@ -0,0 +1,113 @@
+package audio
+
+import (
+	"fmt"
+	"strings"
+)
+
+type StreamKind int
+
+const (
+	StreamOutput StreamKind = iota // a Stream/Output/Audio node, e.g. a browser tab playing sound
+	StreamInput                    // a Stream/Input/Audio node, e.g. an app recording from the mic
+)
+
+// Stream is one running application audio stream (playback or capture), as
+// listed under wpctl status's Streams section.
+type Stream struct {
+	ID     string
+	App    string // human-readable application name
+	Kind   StreamKind
+	Volume int // 0-100
+	Muted  bool
+}
+
+// ListStreams returns every currently running application audio stream,
+// both playback and capture, output streams first.
+func ListStreams() ([]Stream, error) {
+	out, err := status()
+	if err != nil {
+		return nil, err
+	}
+
+	var streams []Stream
+	for _, e := range parseSection(out, "Streams:") {
+		props, err := inspect(e.ID)
+		if err != nil {
+			continue // the stream may have exited between `status` and `inspect`
+		}
+		var kind StreamKind
+		switch props["media.class"] {
+		case "Stream/Output/Audio":
+			kind = StreamOutput
+		case "Stream/Input/Audio":
+			kind = StreamInput
+		default:
+			continue
+		}
+
+		app := props["application.name"]
+		if app == "" {
+			app = e.Name
+		}
+
+		vol, muted, err := GetVolume(e.ID)
+		if err != nil {
+			continue
+		}
+
+		streams = append(streams, Stream{ID: e.ID, App: app, Kind: kind, Volume: vol, Muted: muted})
+	}
+
+	// Output streams first, stable within each kind.
+	out2 := make([]Stream, 0, len(streams))
+	for _, s := range streams {
+		if s.Kind == StreamOutput {
+			out2 = append(out2, s)
+		}
+	}
+	for _, s := range streams {
+		if s.Kind == StreamInput {
+			out2 = append(out2, s)
+		}
+	}
+	return out2, nil
+}
+
+// inspect runs `wpctl inspect <id>` and parses its "key = value" property
+// dump into a map. Values are unquoted; boolean/marker prefixes ("* ") are
+// stripped from keys.
+func inspect(id string) (map[string]string, error) {
+	out, err := run("inspect", id)
+	if err != nil {
+		return nil, err
+	}
+	props := make(map[string]string)
+	for _, line := range strings.Split(out, "\n") {
+		line = strings.TrimSpace(line)
+		line = strings.TrimPrefix(line, "* ")
+		key, value, ok := strings.Cut(line, " = ")
+		if !ok {
+			continue
+		}
+		props[key] = strings.Trim(value, `"`)
+	}
+	return props, nil
+}
+
+// nodeTarget resolves a wpctl global id (e.g. "57", as used by
+// get-volume/set-volume/set-default/...) to the PipeWire node.name pw-play
+// and pw-cat expect for their --target flag. The two tools use different id
+// spaces: passing a wpctl id straight to --target is silently ignored and
+// falls back to the default node instead of erroring.
+func nodeTarget(id string) (string, error) {
+	props, err := inspect(id)
+	if err != nil {
+		return "", err
+	}
+	name := props["node.name"]
+	if name == "" {
+		return "", fmt.Errorf("no node.name found for id %s", id)
+	}
+	return name, nil
+}

internal/audio/wpctl.go

@@ -0,0 +1,54 @@
+// Package audio wraps wpctl (and the pw-play/pw-cat helper tools that ship
+// alongside it) to read and control PipeWire audio state: output/input
+// devices, their volume and mute, the default device, and per-application
+// streams. Every exported function shells out to a CLI tool; there is no
+// direct PipeWire/WirePlumber library integration.
+package audio
+
+import (
+	"bytes"
+	"context"
+	"errors"
+	"fmt"
+	"os/exec"
+	"strings"
+	"time"
+)
+
+var ErrNotFound = errors.New("wpctl not found in PATH")
+
+const defaultTimeout = 15 * time.Second
+
+// CheckAvailable reports whether wpctl is installed and PipeWire is
+// reachable. Call it before using the rest of the package.
+func CheckAvailable() error {
+	if _, err := exec.LookPath("wpctl"); err != nil {
+		return ErrNotFound
+	}
+	if _, err := run("status"); err != nil {
+		return err
+	}
+	return nil
+}
+
+func run(args ...string) (string, error) {
+	ctx, cancel := context.WithTimeout(context.Background(), defaultTimeout)
+	defer cancel()
+
+	cmd := exec.CommandContext(ctx, "wpctl", args...) // #nosec G204 -- args are fixed wpctl subcommands or IDs read back from `wpctl status`, never shell-interpreted
+	var stdout, stderr bytes.Buffer
+	cmd.Stdout = &stdout
+	cmd.Stderr = &stderr
+
+	if err := cmd.Run(); err != nil {
+		if errors.Is(err, exec.ErrNotFound) {
+			return "", ErrNotFound
+		}
+		msg := strings.TrimSpace(stderr.String())
+		if msg == "" {
+			msg = err.Error()
+		}
+		return "", fmt.Errorf("wpctl %s: %s", strings.Join(args, " "), msg)
+	}
+	return stdout.String(), nil
+}

internal/bluetooth/bluetoothctl.go

@@ -0,0 +1,71 @@
+// Package bluetooth wraps bluetoothctl to read and control Bluetooth state
+// (controller power, device pairing/connection). Every exported function
+// shells out to bluetoothctl in its non-interactive single-command mode;
+// there is no direct D-Bus/BlueZ integration.
+package bluetooth
+
+import (
+	"bytes"
+	"context"
+	"errors"
+	"fmt"
+	"os/exec"
+	"strings"
+	"time"
+
+	"github.com/charmbracelet/x/ansi"
+)
+
+var (
+	ErrNotFound     = errors.New("bluetoothctl not found in PATH")
+	ErrNoController = errors.New("no Bluetooth controller found")
+)
+
+const defaultTimeout = 15 * time.Second
+
+// CheckAvailable reports whether bluetoothctl is installed and a Bluetooth
+// controller is reachable. Call it before using the rest of the package.
+func CheckAvailable() error {
+	if _, err := exec.LookPath("bluetoothctl"); err != nil {
+		return ErrNotFound
+	}
+	out, err := run(defaultTimeout, "list")
+	if err != nil {
+		return fmt.Errorf("%w: %v", ErrNoController, err)
+	}
+	if strings.TrimSpace(out) == "" {
+		return ErrNoController
+	}
+	return nil
+}
+
+// run executes bluetoothctl in single-command (non-interactive) mode.
+// bluetoothctl writes both normal output and error messages to stdout
+// (colored with ANSI escapes), so errors are extracted from there rather
+// than stderr.
+func run(timeout time.Duration, args ...string) (string, error) {
+	ctx, cancel := context.WithTimeout(context.Background(), timeout)
+	defer cancel()
+
+	cmd := exec.CommandContext(ctx, "bluetoothctl", args...) // #nosec G204 -- args are fixed bluetoothctl subcommands or user-supplied device addresses, never shell-interpreted
+	var stdout, stderr bytes.Buffer
+	cmd.Stdout = &stdout
+	cmd.Stderr = &stderr
+
+	err := cmd.Run()
+	out := ansi.Strip(stdout.String())
+	if err != nil {
+		if errors.Is(err, exec.ErrNotFound) {
+			return "", ErrNotFound
+		}
+		msg := strings.TrimSpace(out)
+		if msg == "" {
+			msg = strings.TrimSpace(stderr.String())
+		}
+		if msg == "" {
+			msg = err.Error()
+		}
+		return "", fmt.Errorf("bluetoothctl %s: %s", strings.Join(args, " "), msg)
+	}
+	return out, nil
+}

internal/bluetooth/controller.go

@@ -0,0 +1,61 @@
+package bluetooth
+
+import "strings"
+
+// ControllerInfo is the state of the default Bluetooth adapter, as reported
+// by `bluetoothctl show`.
+type ControllerInfo struct {
+	Address      string
+	Name         string
+	Powered      bool
+	Discoverable bool
+	Pairable     bool
+	Discovering  bool
+}
+
+// ShowController returns the state of the default Bluetooth controller.
+func ShowController() (ControllerInfo, error) {
+	out, err := run(defaultTimeout, "show")
+	if err != nil {
+		return ControllerInfo{}, err
+	}
+
+	var c ControllerInfo
+	for _, line := range strings.Split(out, "\n") {
+		line = strings.TrimSpace(line)
+		if rest, ok := strings.CutPrefix(line, "Controller "); ok {
+			if fields := strings.Fields(rest); len(fields) > 0 {
+				c.Address = fields[0]
+			}
+			continue
+		}
+		key, value, ok := strings.Cut(line, ":")
+		if !ok {
+			continue
+		}
+		value = strings.TrimSpace(value)
+		switch strings.TrimSpace(key) {
+		case "Name":
+			c.Name = value
+		case "Powered":
+			c.Powered = value == "yes"
+		case "Discoverable":
+			c.Discoverable = value == "yes"
+		case "Pairable":
+			c.Pairable = value == "yes"
+		case "Discovering":
+			c.Discovering = value == "yes"
+		}
+	}
+	return c, nil
+}
+
+// SetPower turns the Bluetooth controller on or off entirely.
+func SetPower(on bool) error {
+	state := "off"
+	if on {
+		state = "on"
+	}
+	_, err := run(defaultTimeout, "power", state)
+	return err
+}

internal/bluetooth/device.go

@@ -0,0 +1,225 @@
+package bluetooth
+
+import (
+	"strconv"
+	"strings"
+	"time"
+)
+
+const (
+	// actionTimeout bounds connect/pair calls, which can take longer than a
+	// plain query while BlueZ negotiates with the remote device.
+	actionTimeout = 30 * time.Second
+	scanBuffer    = 10 * time.Second
+)
+
+// Device is a Bluetooth device known to BlueZ: either paired, or seen
+// during a recent scan.
+type Device struct {
+	Address   string
+	Name      string
+	Paired    bool
+	Bonded    bool
+	Trusted   bool
+	Connected bool
+	Blocked   bool
+	Icon      string // freedesktop icon name, e.g. "input-mouse"; empty if unknown
+	Battery   int    // 0-100, -1 if unknown
+}
+
+// DeviceDetail extends Device with the extra fields shown on the "device
+// info" screen.
+type DeviceDetail struct {
+	Device
+	Modalias string
+	UUIDs    []string // human-readable service labels
+}
+
+// parseDeviceLines parses the "Device <address> <name>" lines printed by
+// `bluetoothctl devices` into address -> name.
+func parseDeviceLines(out string) map[string]string {
+	names := make(map[string]string)
+	for _, line := range strings.Split(out, "\n") {
+		line = strings.TrimSpace(line)
+		rest, ok := strings.CutPrefix(line, "Device ")
+		if !ok {
+			continue
+		}
+		addr, name, ok := strings.Cut(rest, " ")
+		if !ok {
+			continue
+		}
+		names[addr] = name
+	}
+	return names
+}
+
+func deviceSet(filter string) (map[string]bool, error) {
+	args := []string{"devices"}
+	if filter != "" {
+		args = append(args, filter)
+	}
+	out, err := run(defaultTimeout, args...)
+	if err != nil {
+		return nil, err
+	}
+	set := make(map[string]bool)
+	for addr := range parseDeviceLines(out) {
+		set[addr] = true
+	}
+	return set, nil
+}
+
+// ListDevices returns every device BlueZ currently knows about: paired
+// devices plus anything seen during a recent scan. Paired devices get an
+// extra `info` lookup for icon/battery/blocked state; unpaired ones don't,
+// to keep a large scan result snappy.
+func ListDevices() ([]Device, error) {
+	out, err := run(defaultTimeout, "devices")
+	if err != nil {
+		return nil, err
+	}
+	names := parseDeviceLines(out)
+
+	paired, err := deviceSet("Paired")
+	if err != nil {
+		return nil, err
+	}
+	connected, err := deviceSet("Connected")
+	if err != nil {
+		return nil, err
+	}
+	trusted, err := deviceSet("Trusted")
+	if err != nil {
+		return nil, err
+	}
+
+	devices := make([]Device, 0, len(names))
+	for addr, name := range names {
+		d := Device{
+			Address:   addr,
+			Name:      name,
+			Paired:    paired[addr],
+			Connected: connected[addr],
+			Trusted:   trusted[addr],
+			Battery:   -1,
+		}
+		if d.Paired {
+			if detail, err := Info(addr); err == nil {
+				d.Icon = detail.Icon
+				d.Battery = detail.Battery
+				d.Bonded = detail.Bonded
+				d.Blocked = detail.Blocked
+				if detail.Name != "" {
+					d.Name = detail.Name
+				}
+			}
+		}
+		if d.Name == "" {
+			d.Name = d.Address
+		}
+		devices = append(devices, d)
+	}
+	return devices, nil
+}
+
+// Info fetches full detail for one device via `bluetoothctl info`.
+func Info(address string) (DeviceDetail, error) {
+	out, err := run(defaultTimeout, "info", address)
+	if err != nil {
+		return DeviceDetail{}, err
+	}
+
+	d := DeviceDetail{Device: Device{Address: address, Battery: -1}}
+	for _, line := range strings.Split(out, "\n") {
+		line = strings.TrimSpace(line)
+		if strings.HasPrefix(line, "Device ") {
+			continue
+		}
+		key, value, ok := strings.Cut(line, ":")
+		if !ok {
+			continue
+		}
+		key = strings.TrimSpace(key)
+		value = strings.TrimSpace(value)
+		switch key {
+		case "Name":
+			d.Name = value
+		case "Icon":
+			d.Icon = value
+		case "Paired":
+			d.Paired = value == "yes"
+		case "Bonded":
+			d.Bonded = value == "yes"
+		case "Trusted":
+			d.Trusted = value == "yes"
+		case "Blocked":
+			d.Blocked = value == "yes"
+		case "Connected":
+			d.Connected = value == "yes"
+		case "Modalias":
+			d.Modalias = value
+		case "UUID":
+			if i := strings.Index(value, "("); i >= 0 {
+				value = strings.TrimSpace(value[:i])
+			}
+			if value != "" {
+				d.UUIDs = append(d.UUIDs, value)
+			}
+		case "Battery Percentage":
+			if i, j := strings.Index(value, "("), strings.Index(value, ")"); i >= 0 && j > i {
+				if n, err := strconv.Atoi(value[i+1 : j]); err == nil {
+					d.Battery = n
+				}
+			}
+		}
+	}
+	return d, nil
+}
+
+// Scan puts the controller into discovery mode for the given number of
+// seconds, then returns. Newly seen devices show up in a subsequent
+// ListDevices call.
+func Scan(seconds int) error {
+	_, err := run(time.Duration(seconds)*time.Second+scanBuffer, "--timeout", strconv.Itoa(seconds), "scan", "on")
+	return err
+}
+
+// Pair initiates pairing with a device. Because non-interactive
+// bluetoothctl has no agent to answer PIN/confirmation prompts, this only
+// succeeds for "just works" devices (most mice, keyboards, headsets).
+func Pair(address string) error {
+	_, err := run(actionTimeout, "pair", address)
+	return err
+}
+
+// Connect brings up all profiles for an already-paired (or just-paired)
+// device.
+func Connect(address string) error {
+	_, err := run(actionTimeout, "connect", address)
+	return err
+}
+
+// Disconnect disconnects a device without forgetting it.
+func Disconnect(address string) error {
+	_, err := run(defaultTimeout, "disconnect", address)
+	return err
+}
+
+// SetTrusted marks a device as trusted (allowed to reconnect without
+// confirmation) or not.
+func SetTrusted(address string, trust bool) error {
+	verb := "untrust"
+	if trust {
+		verb = "trust"
+	}
+	_, err := run(defaultTimeout, verb, address)
+	return err
+}
+
+// Remove deletes a paired device's profile, or drops an unpaired device
+// from BlueZ's scan cache.
+func Remove(address string) error {
+	_, err := run(defaultTimeout, "remove", address)
+	return err
+}

internal/config/config.go

@@ -0,0 +1,96 @@
+package config
+
+import (
+	_ "embed"
+	"errors"
+	"fmt"
+	"os"
+	"path/filepath"
+	"strings"
+
+	"github.com/spf13/viper"
+	"gopkg.in/yaml.v3"
+)
+
+//go:embed default_config.yaml
+var defaultConfig []byte
+
+type Config struct {
+	Version string `mapstructure:"-"`
+
+	App struct {
+		ExternalEditor string `mapstructure:"external_editor"`
+	} `mapstructure:"app"`
+
+	TUI struct {
+		UseNerdfontIcons    bool   `mapstructure:"use_nerdfont_icons"`
+		DefaultSidebarState string `mapstructure:"default_sidebar_state"`
+	} `mapstructure:"tui"`
+
+	Keybindings Keybindings `mapstructure:"keybindings"`
+}
+
+var Global *Config
+
+func Load(path string) error {
+	var defaults map[string]any
+	if err := yaml.Unmarshal(defaultConfig, &defaults); err != nil {
+		return fmt.Errorf("default config: %w", err)
+	}
+	for k, v := range flatten("", defaults) {
+		viper.SetDefault(k, v)
+	}
+
+	viper.SetConfigType("yaml")
+	viper.SetConfigFile(path)
+	if err := viper.ReadInConfig(); err != nil {
+		if !errors.Is(err, os.ErrNotExist) {
+			return err
+		}
+	}
+
+	Global = &Config{}
+	if err := viper.Unmarshal(Global); err != nil {
+		return err
+	}
+	return nil
+}
+
+func WriteDefaultConfig(path string) error {
+	if err := os.MkdirAll(filepath.Dir(path), 0o750); err != nil {
+		return fmt.Errorf("create config dir: %w", err)
+	}
+	if err := os.WriteFile(path, defaultConfig, 0o600); err != nil {
+		return fmt.Errorf("write config: %w", err)
+	}
+	return nil
+}
+
+func ExpandPath(p string) string {
+	if strings.HasPrefix(p, "~/") {
+		home, err := os.UserHomeDir()
+		if err != nil {
+			return p
+		}
+		return filepath.Join(home, p[2:])
+	}
+	return p
+}
+
+func flatten(prefix string, m map[string]any) map[string]any {
+	out := make(map[string]any)
+	for k, v := range m {
+		key := k
+		if prefix != "" {
+			key = prefix + "." + k
+		}
+		if nested, ok := v.(map[string]any); ok {
+			for nk, nv := range flatten(key, nested) {
+				out[nk] = nv
+			}
+		} else {
+			out[key] = v
+		}
+	}
+	return out
+}

internal/config/default_config.yaml

@@ -0,0 +1,56 @@
+app:
+  external_editor: "" # override $EDITOR for external editing (e.g. nvim, code --wait)
+
+tui:
+  use_nerdfont_icons: true
+  default_sidebar_state: "expanded" # hidden, collapsed, expanded
+
+keybindings:
+  global:
+    quit: "q,ctrl+c"
+    escape: "esc,ctrl+c"
+    help: "?"
+    open_logs: "ctrl+g"
+    toggle_sidebar: "ctrl+b"
+    cycle_focus: "tab"
+    up: "up,k"
+    down: "down,j"
+    left: "left,h"
+    right: "right,l"
+    goto_top: "g"
+    goto_bottom: "G,end"
+    scroll_up: "pgup,ctrl+u"
+    scroll_down: "pgdown,ctrl+d"
+    prev_page: "[,ctrl+i"
+    next_page: "],ctrl+o"
+
+  docs:
+    search: "/"
+    search_reset: "r"
+    search_next: "n"
+    search_prev: "N"
+
+  network:
+    select: "enter"
+    refresh: "r"
+    forget: "d"
+    toggle_auto: "a"
+    reveal_secret: "p"
+    known: "K"
+    info: "i"
+    disconnect: "d"
+    toggle_radio: "w"
+
+  bluetooth:
+    select: "enter"
+    refresh: "r"
+    forget: "d"
+    toggle_trust: "t"
+    info: "i"
+    toggle_power: "w"
+
+  audio:
+    select: "enter"
+    refresh: "r"
+    mute: "m"
+    test: "t"

internal/config/keybindings.go

@@ -0,0 +1,63 @@
+package config
+
+type GlobalKeys struct {
+	Quit          string `mapstructure:"quit"`
+	Escape        string `mapstructure:"escape"`
+	OpenLogs      string `mapstructure:"open_logs"`
+	ToggleSidebar string `mapstructure:"toggle_sidebar"`
+	Help          string `mapstructure:"help"`
+	Up            string `mapstructure:"up"`
+	Down          string `mapstructure:"down"`
+	Left          string `mapstructure:"left"`
+	Right         string `mapstructure:"right"`
+	CycleFocus    string `mapstructure:"cycle_focus"`
+	ScrollUp      string `mapstructure:"scroll_up"`
+	ScrollDown    string `mapstructure:"scroll_down"`
+	GotoTop       string `mapstructure:"goto_top"`
+	GotoBottom    string `mapstructure:"goto_bottom"`
+	PrevPage      string `mapstructure:"prev_page"`
+	NextPage      string `mapstructure:"next_page"`
+}
+
+type DocsKeys struct {
+	Search      string `mapstructure:"search"`
+	SearchReset string `mapstructure:"search_reset"`
+	SearchNext  string `mapstructure:"search_next"`
+	SearchPrev  string `mapstructure:"search_prev"`
+}
+
+type NetworkKeys struct {
+	Select       string `mapstructure:"select"`
+	Refresh      string `mapstructure:"refresh"`
+	Forget       string `mapstructure:"forget"`
+	ToggleAuto   string `mapstructure:"toggle_auto"`
+	RevealSecret string `mapstructure:"reveal_secret"`
+	Known        string `mapstructure:"known"`
+	Info         string `mapstructure:"info"`
+	Disconnect   string `mapstructure:"disconnect"`
+	ToggleRadio  string `mapstructure:"toggle_radio"`
+}
+
+type BluetoothKeys struct {
+	Select      string `mapstructure:"select"`
+	Refresh     string `mapstructure:"refresh"`
+	Forget      string `mapstructure:"forget"`
+	ToggleTrust string `mapstructure:"toggle_trust"`
+	Info        string `mapstructure:"info"`
+	TogglePower string `mapstructure:"toggle_power"`
+}
+
+type AudioKeys struct {
+	Select  string `mapstructure:"select"`
+	Refresh string `mapstructure:"refresh"`
+	Mute    string `mapstructure:"mute"`
+	Test    string `mapstructure:"test"`
+}
+
+type Keybindings struct {
+	Global    GlobalKeys    `mapstructure:"global"`
+	Docs      DocsKeys      `mapstructure:"docs"`
+	Network   NetworkKeys   `mapstructure:"network"`
+	Bluetooth BluetoothKeys `mapstructure:"bluetooth"`
+	Audio     AudioKeys     `mapstructure:"audio"`
+}

internal/icons/icons.go

@@ -0,0 +1,53 @@
+package icons
+
+import "github.com/anotherhadi/settuings/internal/config"
+
+type Icons struct {
+	Edit   string
+	Reload string
+	Add    string
+
+	About     string
+	Network   string
+	Bluetooth string
+	Audio     string
+
+	Wifi     string
+	Ethernet string
+	VPN      string
+	Check    string
+	Lock     string
+
+	Output string
+	Input  string
+	Apps   string
+}
+
+var I *Icons
+
+func Init(cfg *config.Config) {
+	if cfg.TUI.UseNerdfontIcons {
+		I = &Icons{
+			Edit:   "󰏫 ",
+			Reload: "󰑙 ",
+			Add:    "󰐕 ",
+
+			About:     " ",
+			Network:   "󰛳 ",
+			Bluetooth: "󰂯 ",
+			Audio:     "󰓃 ",
+
+			Wifi:     "󰤨 ",
+			Ethernet: "󰈀 ",
+			VPN:      "󰖂 ",
+			Check:    "󰄬 ",
+			Lock:     "󰌾 ",
+
+			Output: "󰕾 ",
+			Input:  "󰍬 ",
+			Apps:   "󰀻 ",
+		}
+	} else {
+		I = &Icons{}
+	}
+}

internal/keys/audio.go

@@ -0,0 +1,26 @@
+package keys
+
+import (
+	"charm.land/bubbles/v2/key"
+	"github.com/anotherhadi/settuings/internal/config"
+)
+
+type AudioKeyMap struct {
+	Select  key.Binding
+	Refresh key.Binding
+	Mute    key.Binding
+	Test    key.Binding
+}
+
+func newAudioKeyMap(cfg config.AudioKeys) AudioKeyMap {
+	return AudioKeyMap{
+		Select:  binding(cfg.Select, "set as default"),
+		Refresh: binding(cfg.Refresh, "refresh"),
+		Mute:    binding(cfg.Mute, "mute/unmute"),
+		Test:    binding(cfg.Test, "test"),
+	}
+}
+
+func (a AudioKeyMap) Bindings() []key.Binding {
+	return []key.Binding{a.Select, a.Refresh, a.Mute, a.Test}
+}

internal/keys/bluetooth.go

@@ -0,0 +1,32 @@
+package keys
+
+import (
+	"charm.land/bubbles/v2/key"
+	"github.com/anotherhadi/settuings/internal/config"
+)
+
+type BluetoothKeyMap struct {
+	Select      key.Binding
+	Refresh     key.Binding
+	Forget      key.Binding
+	ToggleTrust key.Binding
+	Info        key.Binding
+	TogglePower key.Binding
+}
+
+func newBluetoothKeyMap(cfg config.BluetoothKeys) BluetoothKeyMap {
+	return BluetoothKeyMap{
+		Select:      binding(cfg.Select, "connect/pair"),
+		Refresh:     binding(cfg.Refresh, "scan"),
+		Forget:      binding(cfg.Forget, "forget"),
+		ToggleTrust: binding(cfg.ToggleTrust, "toggle trust"),
+		Info:        binding(cfg.Info, "device info"),
+		TogglePower: binding(cfg.TogglePower, "toggle bluetooth"),
+	}
+}
+
+func (b BluetoothKeyMap) Bindings() []key.Binding {
+	return []key.Binding{
+		b.Select, b.Refresh, b.Info, b.ToggleTrust, b.Forget, b.TogglePower,
+	}
+}

internal/keys/docs.go

@@ -0,0 +1,26 @@
+package keys
+
+import (
+	"charm.land/bubbles/v2/key"
+	"github.com/anotherhadi/settuings/internal/config"
+)
+
+type DocsKeyMap struct {
+	Search      key.Binding
+	SearchReset key.Binding
+	SearchNext  key.Binding
+	SearchPrev  key.Binding
+}
+
+func newDocsKeyMap(cfg config.DocsKeys) DocsKeyMap {
+	return DocsKeyMap{
+		Search:      binding(cfg.Search, "search"),
+		SearchReset: binding(cfg.SearchReset, "reset search"),
+		SearchNext:  binding(cfg.SearchNext, "next match"),
+		SearchPrev:  binding(cfg.SearchPrev, "prev match"),
+	}
+}
+
+func (d DocsKeyMap) Bindings() []key.Binding {
+	return []key.Binding{d.Search, d.SearchReset, d.SearchNext, d.SearchPrev}
+}

internal/keys/global.go

@@ -0,0 +1,61 @@
+package keys
+
+import (
+	"charm.land/bubbles/v2/key"
+	"github.com/anotherhadi/settuings/internal/config"
+)
+
+type GlobalKeyMap struct {
+	Quit          key.Binding
+	OpenLogs      key.Binding
+	ToggleSidebar key.Binding
+	Help          key.Binding
+	Up            key.Binding
+	Down          key.Binding
+	Left          key.Binding
+	Right         key.Binding
+	CycleFocus    key.Binding
+	Escape        key.Binding
+	ScrollUp      key.Binding
+	ScrollDown    key.Binding
+	GotoTop       key.Binding
+	GotoBottom    key.Binding
+	PrevPage      key.Binding
+	NextPage      key.Binding
+}
+
+func newGlobalKeyMap(cfg config.GlobalKeys) GlobalKeyMap {
+	return GlobalKeyMap{
+		Quit:          binding(cfg.Quit, "quit"),
+		OpenLogs:      binding(cfg.OpenLogs, "open logs"),
+		ToggleSidebar: binding(cfg.ToggleSidebar, "toggle sidebar"),
+		Help:          binding(cfg.Help, "help"),
+		Up:            binding(cfg.Up, "up"),
+		Down:          binding(cfg.Down, "down"),
+		Left:          binding(cfg.Left, "scroll left"),
+		Right:         binding(cfg.Right, "scroll right"),
+		CycleFocus:    binding(cfg.CycleFocus, "cycle focus"),
+		Escape:        binding(cfg.Escape, "cancel"),
+		ScrollUp:      binding(cfg.ScrollUp, "scroll up"),
+		ScrollDown:    binding(cfg.ScrollDown, "scroll down"),
+		GotoTop:       binding(cfg.GotoTop, "go to top"),
+		GotoBottom:    binding(cfg.GotoBottom, "go to bottom"),
+		PrevPage:      binding(cfg.PrevPage, "prev page"),
+		NextPage:      binding(cfg.NextPage, "next page"),
+	}
+}
+
+func (g GlobalKeyMap) Bindings() []key.Binding {
+	return []key.Binding{
+		g.Up, g.Down, g.Left, g.Right, g.CycleFocus,
+		g.Quit, g.Escape, g.Help,
+		g.OpenLogs, g.ToggleSidebar,
+		g.ScrollUp, g.ScrollDown,
+		g.GotoTop, g.GotoBottom, g.PrevPage, g.NextPage,
+	}
+}
+
+// CommonBindings returns keys available on every page.
+func (g GlobalKeyMap) CommonBindings() []key.Binding {
+	return []key.Binding{g.Quit, g.Help, g.OpenLogs, g.ToggleSidebar}
+}

internal/keys/keys.go

@@ -0,0 +1,66 @@
+package keys
+
+import (
+	"strings"
+
+	"charm.land/bubbles/v2/key"
+	"github.com/anotherhadi/settuings/internal/config"
+)
+
+type KeyMap struct {
+	Global    GlobalKeyMap
+	Docs      DocsKeyMap
+	Network   NetworkKeyMap
+	Bluetooth BluetoothKeyMap
+	Audio     AudioKeyMap
+}
+
+var Keys *KeyMap
+
+func Init(cfg *config.Config) {
+	kb := cfg.Keybindings
+	Keys = &KeyMap{
+		Global:    newGlobalKeyMap(kb.Global),
+		Docs:      newDocsKeyMap(kb.Docs),
+		Network:   newNetworkKeyMap(kb.Network),
+		Bluetooth: newBluetoothKeyMap(kb.Bluetooth),
+		Audio:     newAudioKeyMap(kb.Audio),
+	}
+}
+
+func parseKeys(s string) []string {
+	parts := strings.Split(s, ",")
+	out := make([]string, 0, len(parts))
+	for _, p := range parts {
+		if k := strings.TrimSpace(p); k != "" {
+			out = append(out, k)
+		}
+	}
+	return out
+}
+
+func binding(s, help string) key.Binding {
+	keys := parseKeys(s)
+	display := strings.Join(keys, "/")
+	return key.NewBinding(key.WithKeys(keys...), key.WithHelp(display, help))
+}
+
+// ChunkByWidth splits bindings into columns sized to fit the terminal width.
+func ChunkByWidth(bindings []key.Binding, termWidth int) [][]key.Binding {
+	cols := termWidth / 26
+	if cols < 2 {
+		cols = 2
+	} else if cols > 7 {
+		cols = 7
+	}
+	perCol := (len(bindings) + cols - 1) / cols
+	var out [][]key.Binding
+	for i := 0; i < len(bindings); i += perCol {
+		end := i + perCol
+		if end > len(bindings) {
+			end = len(bindings)
+		}
+		out = append(out, bindings[i:end])
+	}
+	return out
+}

internal/keys/network.go

@@ -0,0 +1,39 @@
+package keys
+
+import (
+	"charm.land/bubbles/v2/key"
+	"github.com/anotherhadi/settuings/internal/config"
+)
+
+type NetworkKeyMap struct {
+	Select       key.Binding
+	Refresh      key.Binding
+	Forget       key.Binding
+	ToggleAuto   key.Binding
+	RevealSecret key.Binding
+	Known        key.Binding
+	Info         key.Binding
+	Disconnect   key.Binding
+	ToggleRadio  key.Binding
+}
+
+func newNetworkKeyMap(cfg config.NetworkKeys) NetworkKeyMap {
+	return NetworkKeyMap{
+		Select:       binding(cfg.Select, "select"),
+		Refresh:      binding(cfg.Refresh, "refresh"),
+		Forget:       binding(cfg.Forget, "forget"),
+		ToggleAuto:   binding(cfg.ToggleAuto, "toggle autoconnect"),
+		RevealSecret: binding(cfg.RevealSecret, "show/hide password"),
+		Known:        binding(cfg.Known, "known networks"),
+		Info:         binding(cfg.Info, "network info"),
+		Disconnect:   binding(cfg.Disconnect, "disconnect"),
+		ToggleRadio:  binding(cfg.ToggleRadio, "toggle wifi"),
+	}
+}
+
+func (n NetworkKeyMap) Bindings() []key.Binding {
+	return []key.Binding{
+		n.Select, n.Refresh, n.Known, n.Info, n.Disconnect, n.ToggleRadio,
+		n.ToggleAuto, n.RevealSecret, n.Forget,
+	}
+}

internal/network/device.go

@@ -0,0 +1,122 @@
+package network
+
+import "strings"
+
+// Device is one row of `nmcli device status`.
+type Device struct {
+	Name       string
+	Type       string // e.g. "wifi", "ethernet", "wireguard", "loopback"
+	State      string // e.g. "connected", "disconnected", "unavailable"
+	Connection string // active connection profile name, empty if none
+}
+
+func (d Device) Connected() bool {
+	return strings.HasPrefix(d.State, "connected")
+}
+
+// ListDevices returns every network device known to NetworkManager.
+func ListDevices() ([]Device, error) {
+	rows, err := runTerse("DEVICE,TYPE,STATE,CONNECTION", "device", "status")
+	if err != nil {
+		return nil, err
+	}
+	devices := make([]Device, 0, len(rows))
+	for _, row := range rows {
+		devices = append(devices, Device{
+			Name:       field(row, 0),
+			Type:       field(row, 1),
+			State:      field(row, 2),
+			Connection: field(row, 3),
+		})
+	}
+	return devices, nil
+}
+
+// DeviceConnect asks NetworkManager to bring a device up using whichever
+// saved connection profile fits it best. Unlike VPNUp (which reactivates a
+// specific, already-known connection by name), this works even right after
+// a disconnect, when `device status` no longer reports which connection
+// profile was last active on that device.
+func DeviceConnect(device string) error {
+	_, err := run("device", "connect", device)
+	return err
+}
+
+// DeviceIP4 returns the device's primary private IPv4 address without its
+// CIDR suffix (e.g. "192.168.1.54"), or "" if the device has none.
+func DeviceIP4(device string) (string, error) {
+	out, err := getField("IP4.ADDRESS", "device", "show", device)
+	if err != nil {
+		return "", err
+	}
+	if out == "" {
+		return "", nil
+	}
+	// nmcli -g can return multiple addresses newline-separated; keep the first.
+	if i := strings.IndexByte(out, '\n'); i >= 0 {
+		out = out[:i]
+	}
+	if i := strings.IndexByte(out, '/'); i >= 0 {
+		out = out[:i]
+	}
+	return out, nil
+}
+
+// DeviceDetail holds everything settuings shows on the "network info" screen
+// for a connected device: addressing, gateway, DNS and hardware details.
+type DeviceDetail struct {
+	HWAddr   string
+	MTU      string
+	IPv4     string // address + CIDR, e.g. "192.168.1.54/24"
+	Gateway4 string
+	DNS4     []string
+	IPv6     []string
+	Gateway6 string
+	DNS6     []string
+}
+
+// DeviceDetails fetches full addressing/hardware info for device via
+// `nmcli device show`. Unlike the tabular nmcli commands elsewhere in this
+// package, `device show` prints one "KEY:VALUE" line per property (with
+// "KEY[n]" for multi-valued ones) and does not escape colons inside values,
+// so it's parsed differently from runTerse.
+func DeviceDetails(device string) (DeviceDetail, error) {
+	out, err := run("-t", "-f",
+		"GENERAL.HWADDR,GENERAL.MTU,IP4.ADDRESS,IP4.GATEWAY,IP4.DNS,IP6.ADDRESS,IP6.GATEWAY,IP6.DNS",
+		"device", "show", device)
+	if err != nil {
+		return DeviceDetail{}, err
+	}
+
+	var d DeviceDetail
+	for _, line := range strings.Split(strings.TrimRight(out, "\n"), "\n") {
+		key, value, ok := strings.Cut(line, ":")
+		if !ok {
+			continue
+		}
+		if i := strings.IndexByte(key, '['); i >= 0 {
+			key = key[:i] // strip the "[n]" multi-value index
+		}
+		switch key {
+		case "GENERAL.HWADDR":
+			d.HWAddr = value
+		case "GENERAL.MTU":
+			d.MTU = value
+		case "IP4.ADDRESS":
+			if d.IPv4 == "" {
+				d.IPv4 = value
+			}
+		case "IP4.GATEWAY":
+			d.Gateway4 = value
+		case "IP4.DNS":
+			d.DNS4 = append(d.DNS4, value)
+		case "IP6.ADDRESS":
+			d.IPv6 = append(d.IPv6, value)
+		case "IP6.GATEWAY":
+			d.Gateway6 = value
+		case "IP6.DNS":
+			d.DNS6 = append(d.DNS6, value)
+		}
+	}
+	return d, nil
+}

internal/network/ethernet.go

@@ -0,0 +1,45 @@
+package network
+
+// EthernetDevice is a wired network interface and its active profile, if any.
+type EthernetDevice struct {
+	Device     string
+	Connection string
+	State      string
+	IP4        string
+}
+
+func (e EthernetDevice) Connected() bool {
+	return e.State == "connected"
+}
+
+// ListEthernet returns every ethernet device, with its private IPv4 address
+// filled in when connected.
+func ListEthernet() ([]EthernetDevice, error) {
+	devices, err := ListDevices()
+	if err != nil {
+		return nil, err
+	}
+
+	eth := make([]EthernetDevice, 0)
+	for _, d := range devices {
+		if d.Type != "ethernet" {
+			continue
+		}
+		e := EthernetDevice{
+			Device:     d.Name,
+			Connection: d.Connection,
+			State:      d.State,
+		}
+		if e.Connected() {
+			e.IP4, _ = DeviceIP4(d.Name)
+		}
+		eth = append(eth, e)
+	}
+	return eth, nil
+}
+
+// EthernetDown deactivates an ethernet device.
+func EthernetDown(device string) error {
+	_, err := run("device", "disconnect", device)
+	return err
+}

internal/network/known.go

@@ -0,0 +1,62 @@
+package network
+
+import "strings"
+
+// KnownNetwork is a saved Wi-Fi connection profile ("known network" in the
+// iOS sense), independent of whether its AP is currently in range.
+type KnownNetwork struct {
+	Name        string
+	Security    string
+	AutoConnect bool
+	Active      bool
+}
+
+// ListKnownWifi returns every saved Wi-Fi connection profile.
+func ListKnownWifi() ([]KnownNetwork, error) {
+	rows, err := runTerse("NAME,TYPE,AUTOCONNECT,ACTIVE", "connection", "show")
+	if err != nil {
+		return nil, err
+	}
+
+	known := make([]KnownNetwork, 0)
+	for _, row := range rows {
+		if field(row, 1) != "802-11-wireless" {
+			continue
+		}
+		name := field(row, 0)
+		security, _ := getField("802-11-wireless-security.key-mgmt", "connection", "show", "id", name)
+		known = append(known, KnownNetwork{
+			Name:        name,
+			Security:    security,
+			AutoConnect: field(row, 2) == "yes",
+			Active:      field(row, 3) == "yes",
+		})
+	}
+	return known, nil
+}
+
+// Secret returns the saved PSK/passphrase for a Wi-Fi connection profile.
+// It is empty for open networks or profiles using a non-PSK auth method.
+func Secret(name string) (string, error) {
+	out, err := run("--show-secrets", "-g", "802-11-wireless-security.psk", "connection", "show", "id", name)
+	if err != nil {
+		return "", err
+	}
+	return strings.TrimSpace(out), nil
+}
+
+// SetAutoConnect toggles whether a saved connection is joined automatically.
+func SetAutoConnect(name string, enabled bool) error {
+	value := "no"
+	if enabled {
+		value = "yes"
+	}
+	_, err := run("connection", "modify", "id", name, "connection.autoconnect", value)
+	return err
+}
+
+// Forget deletes a saved connection profile entirely.
+func Forget(name string) error {
+	_, err := run("connection", "delete", "id", name)
+	return err
+}

internal/network/nmcli.go

@@ -0,0 +1,120 @@
+// Package network wraps nmcli to read and control network state
+// (Wi-Fi, Ethernet, VPN). Every exported function shells out to nmcli;
+// there is no direct D-Bus/NetworkManager integration.
+package network
+
+import (
+	"bytes"
+	"context"
+	"errors"
+	"fmt"
+	"os/exec"
+	"strings"
+	"time"
+)
+
+var (
+	ErrNotFound   = errors.New("nmcli not found in PATH")
+	ErrNotRunning = errors.New("NetworkManager is not running")
+)
+
+const defaultTimeout = 15 * time.Second
+
+// CheckAvailable reports whether nmcli is installed and NetworkManager is
+// reachable. Call it before using the rest of the package.
+func CheckAvailable() error {
+	if _, err := exec.LookPath("nmcli"); err != nil {
+		return ErrNotFound
+	}
+	out, err := run("-t", "-f", "RUNNING", "general")
+	if err != nil {
+		return fmt.Errorf("%w: %v", ErrNotRunning, err)
+	}
+	if strings.TrimSpace(out) != "running" {
+		return ErrNotRunning
+	}
+	return nil
+}
+
+func run(args ...string) (string, error) {
+	ctx, cancel := context.WithTimeout(context.Background(), defaultTimeout)
+	defer cancel()
+
+	cmd := exec.CommandContext(ctx, "nmcli", args...) // #nosec G204 -- args are fixed nmcli subcommands or user-supplied SSID/password, never shell-interpreted
+	var stdout, stderr bytes.Buffer
+	cmd.Stdout = &stdout
+	cmd.Stderr = &stderr
+
+	if err := cmd.Run(); err != nil {
+		if errors.Is(err, exec.ErrNotFound) {
+			return "", ErrNotFound
+		}
+		msg := strings.TrimSpace(stderr.String())
+		if msg == "" {
+			msg = err.Error()
+		}
+		return "", fmt.Errorf("nmcli %s: %s", strings.Join(args, " "), msg)
+	}
+	return stdout.String(), nil
+}
+
+// getField runs `nmcli -g <field> ...` and returns the single trimmed value.
+func getField(field string, args ...string) (string, error) {
+	out, err := run(append([]string{"-g", field}, args...)...)
+	if err != nil {
+		return "", err
+	}
+	return strings.TrimSpace(out), nil
+}
+
+// runTerse runs nmcli with -t -f <fields> and parses each output line into
+// its colon-separated columns, unescaping nmcli's `\:` and `\\`.
+func runTerse(fields string, args ...string) ([][]string, error) {
+	out, err := run(append([]string{"-t", "-f", fields}, args...)...)
+	if err != nil {
+		return nil, err
+	}
+	out = strings.TrimRight(out, "\n")
+	if out == "" {
+		return nil, nil
+	}
+
+	lines := strings.Split(out, "\n")
+	rows := make([][]string, 0, len(lines))
+	for _, line := range lines {
+		rows = append(rows, parseTerseLine(line))
+	}
+	return rows, nil
+}
+
+func parseTerseLine(line string) []string {
+	var fields []string
+	var cur strings.Builder
+	escaped := false
+	for _, r := range line {
+		if escaped {
+			cur.WriteRune(r)
+			escaped = false
+			continue
+		}
+		switch r {
+		case '\\':
+			escaped = true
+		case ':':
+			fields = append(fields, cur.String())
+			cur.Reset()
+		default:
+			cur.WriteRune(r)
+		}
+	}
+	fields = append(fields, cur.String())
+	return fields
+}
+
+// field is a small helper to safely index a parsed terse row.
+func field(row []string, i int) string {
+	if i < 0 || i >= len(row) {
+		return ""
+	}
+	return row[i]
+}

internal/network/vpn.go

@@ -0,0 +1,44 @@
+package network
+
+// VPNConnection is a saved VPN or WireGuard connection profile.
+type VPNConnection struct {
+	Name   string
+	Type   string // "vpn" or "wireguard"
+	Active bool
+	Device string
+}
+
+// ListVPN returns every saved connection whose type is "vpn" or "wireguard".
+func ListVPN() ([]VPNConnection, error) {
+	rows, err := runTerse("NAME,TYPE,ACTIVE,DEVICE", "connection", "show")
+	if err != nil {
+		return nil, err
+	}
+
+	vpns := make([]VPNConnection, 0)
+	for _, row := range rows {
+		typ := field(row, 1)
+		if typ != "vpn" && typ != "wireguard" {
+			continue
+		}
+		vpns = append(vpns, VPNConnection{
+			Name:   field(row, 0),
+			Type:   typ,
+			Active: field(row, 2) == "yes",
+			Device: field(row, 3),
+		})
+	}
+	return vpns, nil
+}
+
+// VPNUp activates a VPN/WireGuard connection by name.
+func VPNUp(name string) error {
+	_, err := run("connection", "up", "id", name)
+	return err
+}
+
+// VPNDown deactivates a VPN/WireGuard connection by name.
+func VPNDown(name string) error {
+	_, err := run("connection", "down", "id", name)
+	return err
+}

internal/network/wifi.go

@@ -0,0 +1,118 @@
+package network
+
+import (
+	"errors"
+	"strconv"
+)
+
+var ErrNoWifiDevice = errors.New("no Wi-Fi device found")
+
+// WifiDevice returns the first Wi-Fi radio device, if any.
+func WifiDevice() (Device, error) {
+	devices, err := ListDevices()
+	if err != nil {
+		return Device{}, err
+	}
+	for _, d := range devices {
+		if d.Type == "wifi" {
+			return d, nil
+		}
+	}
+	return Device{}, ErrNoWifiDevice
+}
+
+// WifiNetwork is one access point seen by `nmcli device wifi list`.
+type WifiNetwork struct {
+	Active   bool // this is the AP we're currently associated with
+	SSID     string
+	BSSID    string
+	Signal   int // 0-100
+	Security string
+}
+
+func (w WifiNetwork) Secured() bool {
+	return w.Security != "" && w.Security != "--"
+}
+
+// ListWifi returns visible access points, deduplicated by SSID (keeping the
+// strongest signal seen for each network), sorted strongest-first.
+func ListWifi() ([]WifiNetwork, error) {
+	rows, err := runTerse("IN-USE,SSID,BSSID,SIGNAL,SECURITY", "device", "wifi", "list")
+	if err != nil {
+		return nil, err
+	}
+
+	bySSID := make(map[string]WifiNetwork)
+	order := make([]string, 0, len(rows))
+	for _, row := range rows {
+		ssid := field(row, 1)
+		if ssid == "" {
+			continue // hidden network with no broadcast SSID
+		}
+		signal, _ := strconv.Atoi(field(row, 3))
+		net := WifiNetwork{
+			Active:   field(row, 0) == "*",
+			SSID:     ssid,
+			BSSID:    field(row, 2),
+			Signal:   signal,
+			Security: field(row, 4),
+		}
+		existing, ok := bySSID[ssid]
+		if !ok || net.Active || net.Signal > existing.Signal {
+			bySSID[ssid] = net
+		}
+		if !ok {
+			order = append(order, ssid)
+		}
+	}
+
+	networks := make([]WifiNetwork, 0, len(order))
+	for _, ssid := range order {
+		networks = append(networks, bySSID[ssid])
+	}
+	return networks, nil
+}
+
+// Rescan asks NetworkManager to trigger a fresh Wi-Fi scan. It returns once
+// the scan is requested, not once it completes; call ListWifi shortly after.
+func Rescan() error {
+	_, err := run("device", "wifi", "rescan")
+	return err
+}
+
+// ConnectWifi joins ssid, creating a new saved profile if none exists yet.
+// Pass an empty password for open networks or when a saved profile already
+// has one.
+func ConnectWifi(ssid, password string) error {
+	args := []string{"device", "wifi", "connect", ssid}
+	if password != "" {
+		args = append(args, "password", password)
+	}
+	_, err := run(args...)
+	return err
+}
+
+// DisconnectWifi disconnects the given Wi-Fi device without forgetting it.
+func DisconnectWifi(device string) error {
+	_, err := run("device", "disconnect", device)
+	return err
+}
+
+// SetWifiRadio turns the Wi-Fi radio on or off entirely.
+func SetWifiRadio(on bool) error {
+	state := "off"
+	if on {
+		state = "on"
+	}
+	_, err := run("radio", "wifi", state)
+	return err
+}
+
+// RadioEnabled reports whether the Wi-Fi radio is currently switched on.
+func RadioEnabled() (bool, error) {
+	out, err := getField("WIFI", "general")
+	if err != nil {
+		return false, err
+	}
+	return out == "enabled", nil
+}

internal/style/highlight.go

@@ -0,0 +1,10 @@
+package style
+
+import (
+	"charm.land/lipgloss/v2"
+	"image/color"
+)
+
+func Paint(c color.Color, s string) string {
+	return lipgloss.NewStyle().Foreground(c).Render(s)
+}

internal/style/style.go

@@ -0,0 +1,20 @@
+package style
+
+import (
+	"charm.land/lipgloss/v2"
+	ilovetui "github.com/anotherhadi/ilovetui"
+)
+
+type Styles struct {
+	PanelEditing lipgloss.Style
+}
+
+var S *Styles
+
+func Init() {
+	S = &Styles{
+		PanelEditing: lipgloss.NewStyle().
+			Border(lipgloss.RoundedBorder()).
+			BorderForeground(ilovetui.S.Base0E),
+	}
+}

internal/ui/about/model.go

@@ -0,0 +1,282 @@
+package about
+
+import (
+	"regexp"
+	"sort"
+	"strings"
+	"unicode/utf8"
+
+	settuings "github.com/anotherhadi/settuings"
+
+	"charm.land/bubbles/v2/help"
+	"charm.land/bubbles/v2/key"
+	"charm.land/bubbles/v2/textinput"
+	"charm.land/bubbles/v2/viewport"
+	tea "charm.land/bubbletea/v2"
+	"charm.land/lipgloss/v2"
+	ilovetui "github.com/anotherhadi/ilovetui"
+	"github.com/anotherhadi/settuings/internal/keys"
+	"github.com/anotherhadi/settuings/internal/util"
+)
+
+func readDoc(name string) string {
+	b, _ := settuings.DocsFS.ReadFile("docs/" + name)
+	return string(b)
+}
+
+var contentMarkdown = readDoc("about.md")
+
+type matchEntry struct {
+	line  int
+	start int
+	end   int
+}
+
+type Model struct {
+	viewport    viewport.Model
+	help        help.Model
+	searchInput textinput.Model
+	searching   bool
+
+	matches    []matchEntry
+	matchIndex int
+
+	renderedLines []string
+	strippedLines []string
+
+	width  int
+	height int
+}
+
+func New() Model {
+	ti := textinput.New()
+	ti.Prompt = "/"
+	s := ti.Styles()
+	s.Focused.Prompt = lipgloss.NewStyle().Foreground(ilovetui.S.Primary)
+	ti.SetStyles(s)
+
+	return Model{
+		viewport:    viewport.New(),
+		help:        ilovetui.NewHelp(),
+		searchInput: ti,
+	}
+}
+
+func (m Model) Init() tea.Cmd {
+	return nil
+}
+
+func (m Model) IsEditing() bool { return m.searching }
+
+func (m *Model) SetSize(w, h int) {
+	m.width = w
+	m.height = h
+	m.help.SetWidth(w - 2)
+	m.searchInput.SetWidth(w - 4)
+
+	statusH := strings.Count(m.renderStatusBar(), "\n") + 1
+	frameW := windowStyle().GetHorizontalFrameSize()
+	frameH := windowStyle().GetVerticalFrameSize()
+
+	m.viewport.SetWidth(w - frameW)
+	m.viewport.SetHeight(h - frameH - statusH)
+	m.renderMarkdown()
+}
+
+func (m *Model) applySearch() {
+	query := m.searchInput.Value()
+	m.matches = nil
+	m.matchIndex = 0
+
+	if query != "" {
+		re, err := regexp.Compile("(?i)" + regexp.QuoteMeta(query))
+		if err == nil {
+			for lineIdx, stripped := range m.strippedLines {
+				for _, match := range re.FindAllStringIndex(stripped, -1) {
+					m.matches = append(m.matches, matchEntry{
+						line:  lineIdx,
+						start: match[0],
+						end:   match[1],
+					})
+				}
+			}
+		}
+	}
+
+	m.rebuildViewportContent()
+	if len(m.matches) > 0 {
+		util.SetYOffset(&m.viewport, m.matches[0].line)
+	}
+}
+
+func (m *Model) searchNext() {
+	if len(m.matches) == 0 {
+		return
+	}
+	m.matchIndex = (m.matchIndex + 1) % len(m.matches)
+	m.rebuildViewportContent()
+	util.SetYOffset(&m.viewport, m.matches[m.matchIndex].line)
+}
+
+func (m *Model) searchPrev() {
+	if len(m.matches) == 0 {
+		return
+	}
+	m.matchIndex = (m.matchIndex - 1 + len(m.matches)) % len(m.matches)
+	m.rebuildViewportContent()
+	util.SetYOffset(&m.viewport, m.matches[m.matchIndex].line)
+}
+
+func (m *Model) rebuildViewportContent() {
+	if len(m.matches) == 0 || m.searchInput.Value() == "" {
+		m.viewport.SetContent(strings.Join(m.renderedLines, "\n"))
+		return
+	}
+
+	type lineInfo struct {
+		intervals  [][]int
+		currentIdx int
+	}
+	byLine := make(map[int]*lineInfo)
+	for i, match := range m.matches {
+		li := byLine[match.line]
+		if li == nil {
+			li = &lineInfo{currentIdx: -1}
+			byLine[match.line] = li
+		}
+		li.intervals = append(li.intervals, []int{match.start, match.end})
+		if i == m.matchIndex {
+			li.currentIdx = len(li.intervals) - 1
+		}
+	}
+
+	lines := make([]string, len(m.renderedLines))
+	for i, ansiLine := range m.renderedLines {
+		if li, ok := byLine[i]; ok {
+			lines[i] = injectHighlightsInLine(ansiLine, li.intervals, li.currentIdx)
+		} else {
+			lines[i] = ansiLine
+		}
+	}
+	m.viewport.SetContent(strings.Join(lines, "\n"))
+}
+
+func lipglossAnsiCodes(s lipgloss.Style) (open, close string) {
+	const sentinel = "X"
+	rendered := s.Render(sentinel)
+	idx := strings.Index(rendered, sentinel)
+	if idx < 0 {
+		return "", ""
+	}
+	return rendered[:idx], rendered[idx+len(sentinel):]
+}
+
+func injectHighlightsInLine(ansiLine string, intervals [][]int, currentIdx int) string {
+	if len(intervals) == 0 {
+		return ansiLine
+	}
+
+	normalOpen, normalClose := lipglossAnsiCodes(lipgloss.NewStyle().Background(ilovetui.S.SubtleBg))
+	currentOpen, currentClose := lipglossAnsiCodes(lipgloss.NewStyle().Background(ilovetui.S.Primary).Foreground(ilovetui.S.Text))
+
+	type injection struct {
+		visPos   int
+		code     string
+		priority int // 0 = close (emit before opens at same pos), 1 = open
+	}
+	var injections []injection
+	for i, iv := range intervals {
+		open, close := normalOpen, normalClose
+		if i == currentIdx {
+			open, close = currentOpen, currentClose
+		}
+		injections = append(injections, injection{visPos: iv[0], code: open, priority: 1})
+		injections = append(injections, injection{visPos: iv[1], code: close, priority: 0})
+	}
+	sort.SliceStable(injections, func(a, b int) bool {
+		if injections[a].visPos != injections[b].visPos {
+			return injections[a].visPos < injections[b].visPos
+		}
+		return injections[a].priority < injections[b].priority
+	})
+
+	var sb strings.Builder
+	visPos := 0
+	injIdx := 0
+	i := 0
+	for i < len(ansiLine) {
+		for injIdx < len(injections) && injections[injIdx].visPos == visPos {
+			sb.WriteString(injections[injIdx].code)
+			injIdx++
+		}
+		if ansiLine[i] == '\x1b' {
+			j := i + 1
+			if j < len(ansiLine) {
+				switch ansiLine[j] {
+				case '[':
+					j++
+					for j < len(ansiLine) && (ansiLine[j] < '@' || ansiLine[j] > '~') {
+						j++
+					}
+					if j < len(ansiLine) {
+						j++
+					}
+				case ']':
+					j++
+					for j < len(ansiLine) {
+						if ansiLine[j] == '\a' {
+							j++
+							break
+						}
+						if ansiLine[j] == '\x1b' && j+1 < len(ansiLine) && ansiLine[j+1] == '\\' {
+							j += 2
+							break
+						}
+						j++
+					}
+				default:
+					j++
+				}
+			}
+			sb.WriteString(ansiLine[i:j])
+			i = j
+		} else {
+			_, size := utf8.DecodeRuneInString(ansiLine[i:])
+			if size == 0 {
+				size = 1
+			}
+			sb.WriteString(ansiLine[i : i+size])
+			i += size
+			visPos += size
+		}
+	}
+	for injIdx < len(injections) {
+		sb.WriteString(injections[injIdx].code)
+		injIdx++
+	}
+	return sb.String()
+}
+
+func (m *Model) renderStatusBar() string {
+	if m.searching {
+		return lipgloss.NewStyle().Padding(0, 1).Render(m.searchInput.View())
+	}
+	return lipgloss.NewStyle().Padding(0, 1).Render(m.help.View(aboutKeyMap{width: m.width}))
+}
+
+type aboutKeyMap struct{ width int }
+
+func (aboutKeyMap) ShortHelp() []key.Binding {
+	g := keys.Keys.Global
+	d := keys.Keys.Docs
+	return []key.Binding{g.Up, g.Down, d.Search, g.Help}
+}
+
+func (m aboutKeyMap) FullHelp() [][]key.Binding {
+	g := keys.Keys.Global
+	d := keys.Keys.Docs
+	pageGlobals := []key.Binding{g.Up, g.Down, g.ScrollUp, g.ScrollDown}
+	all := append(d.Bindings(), pageGlobals...)
+	all = append(all, g.CommonBindings()...)
+	return keys.ChunkByWidth(all, m.width)
+}

internal/ui/about/update.go

@@ -0,0 +1,66 @@
+package about
+
+import (
+	"charm.land/bubbles/v2/key"
+	tea "charm.land/bubbletea/v2"
+	"github.com/anotherhadi/settuings/internal/keys"
+	"github.com/anotherhadi/settuings/internal/util"
+)
+
+func (m Model) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
+	g := keys.Keys.Global
+	d := keys.Keys.Docs
+
+	switch msg := msg.(type) {
+	case tea.MouseWheelMsg:
+		util.HandleMouseWheel(msg, &m.viewport)
+
+	case tea.KeyPressMsg:
+		if m.searching {
+			switch {
+			case key.Matches(msg, g.Escape):
+				m.searching = false
+				m.searchInput.Blur()
+				m.SetSize(m.width, m.height)
+			case msg.String() == "enter":
+				m.searching = false
+				m.searchInput.Blur()
+				m.SetSize(m.width, m.height)
+			default:
+				var cmd tea.Cmd
+				m.searchInput, cmd = m.searchInput.Update(msg)
+				m.applySearch()
+				return m, cmd
+			}
+			return m, nil
+		}
+
+		switch {
+		case key.Matches(msg, d.Search):
+			m.searching = true
+			m.searchInput.SetValue("")
+			m.searchInput.Focus()
+			m.SetSize(m.width, m.height)
+		case key.Matches(msg, d.SearchReset):
+			m.matches = nil
+			m.matchIndex = 0
+			m.rebuildViewportContent()
+		case key.Matches(msg, d.SearchNext):
+			m.searchNext()
+		case key.Matches(msg, d.SearchPrev):
+			m.searchPrev()
+		case key.Matches(msg, g.Up):
+			util.ScrollLines(&m.viewport, -1)
+		case key.Matches(msg, g.Down):
+			util.ScrollLines(&m.viewport, 1)
+		case key.Matches(msg, g.ScrollUp):
+			util.ScrollViewport(&m.viewport, -1)
+		case key.Matches(msg, g.ScrollDown):
+			util.ScrollViewport(&m.viewport, 1)
+		case key.Matches(msg, g.Help):
+			m.help.ShowAll = !m.help.ShowAll
+			m.SetSize(m.width, m.height)
+		}
+	}
+	return m, nil
+}

internal/ui/about/view.go

@@ -0,0 +1,85 @@
+package about
+
+import (
+	"bytes"
+	"fmt"
+	"strings"
+	"text/template"
+
+	tea "charm.land/bubbletea/v2"
+	"charm.land/glamour/v2"
+	"charm.land/lipgloss/v2"
+	ilovetui "github.com/anotherhadi/ilovetui"
+	"github.com/anotherhadi/settuings/internal/config"
+	"github.com/anotherhadi/settuings/internal/util"
+	"github.com/charmbracelet/x/ansi"
+)
+
+func windowStyle() lipgloss.Style {
+	return lipgloss.NewStyle().
+		Border(lipgloss.RoundedBorder()).
+		BorderForeground(ilovetui.S.Subtle).
+		Padding(0, 0)
+}
+
+func (m Model) View() tea.View {
+	statusBar := m.renderStatusBar()
+	if len(m.matches) > 0 {
+		var countText string
+		if m.searching {
+			countText = fmt.Sprintf("%d matches", len(m.matches))
+		} else {
+			countText = fmt.Sprintf("%d/%d", m.matchIndex+1, len(m.matches))
+		}
+		count := lipgloss.NewStyle().Padding(0, 1).
+			Foreground(ilovetui.S.Muted).
+			Render(countText)
+		statusBar = lipgloss.JoinHorizontal(lipgloss.Top, statusBar, count)
+	}
+	return tea.NewView(lipgloss.JoinVertical(lipgloss.Left,
+		windowStyle().Render(m.viewport.View()),
+		statusBar,
+	))
+}
+
+func (m *Model) renderMarkdown() {
+	cfg := config.Global
+	data := struct {
+		Cfg      *config.Config
+		OS       string
+		Kernel   string
+		Hostname string
+		Arch     string
+	}{
+		Cfg:      cfg,
+		OS:       util.OSName(),
+		Kernel:   util.KernelVersion(),
+		Hostname: util.Hostname(),
+		Arch:     util.Arch(),
+	}
+
+	tmpl, err := template.New("about").Parse(contentMarkdown)
+	if err != nil {
+		return
+	}
+
+	var processed bytes.Buffer
+	if err := tmpl.Execute(&processed, data); err != nil {
+		return
+	}
+
+	width := m.viewport.Width() - util.ScrollbarGutterWidth
+	renderer, _ := glamour.NewTermRenderer(
+		glamour.WithStyles(ilovetui.GlamourStyleConfig()),
+		glamour.WithWordWrap(width),
+	)
+
+	str, _ := renderer.Render(processed.String())
+	m.renderedLines = strings.Split(str, "\n")
+	m.strippedLines = make([]string, len(m.renderedLines))
+	for i, l := range m.renderedLines {
+		m.strippedLines[i] = ansi.Strip(l)
+	}
+	m.applySearch()
+	util.RefreshScrollbar(&m.viewport)
+}

internal/ui/app/model.go

@@ -0,0 +1,101 @@
+package app
+
+import (
+	"fmt"
+	"log"
+	"os"
+	"strconv"
+	"strings"
+
+	tea "charm.land/bubbletea/v2"
+	"github.com/anotherhadi/settuings/internal/config"
+	aboutUI "github.com/anotherhadi/settuings/internal/ui/about"
+	audioUI "github.com/anotherhadi/settuings/internal/ui/audio"
+	bluetoothUI "github.com/anotherhadi/settuings/internal/ui/bluetooth"
+	notificationsUI "github.com/anotherhadi/settuings/internal/ui/components/notifications"
+	networkUI "github.com/anotherhadi/settuings/internal/ui/network"
+	"github.com/sirupsen/logrus"
+)
+
+var pageShortcuts = func() map[string]page {
+	m := make(map[string]page, len(pageRegistry))
+	for i, e := range pageRegistry {
+		m[strconv.Itoa(i+1)] = e.id
+	}
+	return m
+}()
+
+type Model struct {
+	page       page
+	logPath    string
+	fatalErr   error
+	logFileErr error
+
+	width         int
+	height        int
+	sidebarState  sidebarState
+	about         aboutUI.Model
+	network       networkUI.Model
+	bluetooth     bluetoothUI.Model
+	audio         audioUI.Model
+	notifications notificationsUI.Model
+}
+
+const logPath = "/tmp/settuings.log"
+
+// New creates the app's root model. initialPage selects the page shown on
+// launch (matched case-insensitively against PageNames); an empty string
+// falls back to the default page. It returns an error if initialPage is
+// non-empty and does not match a known page.
+func New(initialPage string) (Model, error) {
+	startPage := pageAbout
+	if initialPage != "" {
+		p, ok := lookupPage(initialPage)
+		if !ok {
+			return Model{}, fmt.Errorf("unknown page %q (valid: %s)", initialPage, strings.Join(PageNames(), ", "))
+		}
+		startPage = p
+	}
+
+	cfg := config.Global
+
+	m := Model{
+		page:          startPage,
+		about:         aboutUI.New(),
+		network:       networkUI.New(),
+		bluetooth:     bluetoothUI.New(),
+		audio:         audioUI.New(),
+		notifications: notificationsUI.New(),
+		sidebarState:  sidebarState(cfg.TUI.DefaultSidebarState),
+		logPath:       logPath,
+	}
+
+	if lf, err := os.OpenFile(m.logPath, os.O_CREATE|os.O_WRONLY|os.O_APPEND, 0o600); err == nil {
+		log.SetOutput(lf)
+		logrus.SetOutput(lf)
+	} else {
+		m.logFileErr = err
+	}
+
+	return m, nil
+}
+
+func (m Model) FatalErr() error { return m.fatalErr }
+
+func (m Model) Init() tea.Cmd {
+	cmds := []tea.Cmd{m.about.Init(), m.network.Init(), m.bluetooth.Init(), m.audio.Init()}
+	if m.page != pageAbout {
+		cmds = append(cmds, m.activatePage(m.page))
+	}
+	if m.logFileErr != nil {
+		err := m.logFileErr
+		cmds = append(cmds, func() tea.Msg {
+			return notificationsUI.NotificationMsg{
+				Title: "Warning",
+				Body:  "Could not open log file: " + err.Error(),
+				Kind:  notificationsUI.KindWarning,
+			}
+		})
+	}
+	return tea.Batch(cmds...)
+}

internal/ui/app/pages.go

@@ -0,0 +1,127 @@
+package app
+
+import (
+	"strings"
+
+	tea "charm.land/bubbletea/v2"
+	"github.com/anotherhadi/settuings/internal/icons"
+	aboutUI "github.com/anotherhadi/settuings/internal/ui/about"
+	audioUI "github.com/anotherhadi/settuings/internal/ui/audio"
+	bluetoothUI "github.com/anotherhadi/settuings/internal/ui/bluetooth"
+	networkUI "github.com/anotherhadi/settuings/internal/ui/network"
+)
+
+type page string
+
+const (
+	pageAbout     page = "About"
+	pageNetwork   page = "Network"
+	pageBluetooth page = "Bluetooth"
+	pageAudio     page = "Audio"
+)
+
+// pageEntry describes a page and all its integration hooks.
+type pageEntry struct {
+	id   page
+	icon func() string
+
+	// render returns the page's view content. nil = show "empty".
+	render func(m *Model) string
+	// update is called when this page is active. nil = no-op.
+	update func(m *Model, msg tea.Msg) tea.Cmd
+	// isEditing reports whether the page is in text-editing mode.
+	isEditing func(m *Model) bool
+	// resize propagates a new (w, h) to the page model.
+	resize func(m *Model, w, h int)
+	// hasUpdate reports whether the page has unseen updates.
+	hasUpdate func(m *Model) bool
+	// activate is called once when the user navigates onto this page.
+	// nil = no-op.
+	activate func(m *Model) tea.Cmd
+	// deactivate is called synchronously once when the user navigates away
+	// from this page (or quits the app). nil = no-op. Unlike activate, this
+	// runs synchronously rather than as a tea.Cmd: pages that hold a
+	// background OS process (e.g. Audio's live input-level meter) need it
+	// torn down immediately, not racing an async command against exit.
+	deactivate func(m *Model)
+}
+
+var pageRegistry = []pageEntry{
+	{
+		id:   pageAbout,
+		icon: func() string { return icons.I.About },
+
+		render: func(m *Model) string { return m.about.View().Content },
+		update: func(m *Model, msg tea.Msg) tea.Cmd {
+			updated, cmd := m.about.Update(msg)
+			m.about = updated.(aboutUI.Model)
+			return cmd
+		},
+		isEditing: func(m *Model) bool { return m.about.IsEditing() },
+		resize:    func(m *Model, w, h int) { m.about.SetSize(w, h) },
+	},
+	{
+		id:   pageNetwork,
+		icon: func() string { return icons.I.Network },
+
+		render: func(m *Model) string { return m.network.View().Content },
+		update: func(m *Model, msg tea.Msg) tea.Cmd {
+			updated, cmd := m.network.Update(msg)
+			m.network = updated.(networkUI.Model)
+			return cmd
+		},
+		isEditing: func(m *Model) bool { return m.network.IsEditing() },
+		resize:    func(m *Model, w, h int) { m.network.SetSize(w, h) },
+		activate:  func(m *Model) tea.Cmd { return m.network.Activate() },
+	},
+	{
+		id:   pageBluetooth,
+		icon: func() string { return icons.I.Bluetooth },
+
+		render: func(m *Model) string { return m.bluetooth.View().Content },
+		update: func(m *Model, msg tea.Msg) tea.Cmd {
+			updated, cmd := m.bluetooth.Update(msg)
+			m.bluetooth = updated.(bluetoothUI.Model)
+			return cmd
+		},
+		isEditing: func(m *Model) bool { return m.bluetooth.IsEditing() },
+		resize:    func(m *Model, w, h int) { m.bluetooth.SetSize(w, h) },
+		activate:  func(m *Model) tea.Cmd { return m.bluetooth.Activate() },
+	},
+	{
+		id:   pageAudio,
+		icon: func() string { return icons.I.Audio },
+
+		render: func(m *Model) string { return m.audio.View().Content },
+		update: func(m *Model, msg tea.Msg) tea.Cmd {
+			updated, cmd := m.audio.Update(msg)
+			m.audio = updated.(audioUI.Model)
+			return cmd
+		},
+		isEditing:  func(m *Model) bool { return m.audio.IsEditing() },
+		resize:     func(m *Model, w, h int) { m.audio.SetSize(w, h) },
+		activate:   func(m *Model) tea.Cmd { return m.audio.Activate() },
+		deactivate: func(m *Model) { m.audio.Deactivate() },
+	},
+}
+
+// PageNames returns the valid page identifiers, in sidebar order, usable
+// with the --page flag.
+func PageNames() []string {
+	names := make([]string, len(pageRegistry))
+	for i, e := range pageRegistry {
+		names[i] = string(e.id)
+	}
+	return names
+}
+
+// lookupPage resolves a case-insensitive page name (as passed on the
+// command line) to its registry id.
+func lookupPage(name string) (page, bool) {
+	for _, e := range pageRegistry {
+		if strings.EqualFold(string(e.id), name) {
+			return e.id, true
+		}
+	}
+	return "", false
+}

internal/ui/app/sidebar.go

@@ -0,0 +1,96 @@
+package app
+
+import (
+	"strconv"
+	"strings"
+
+	"charm.land/lipgloss/v2"
+	ilovetui "github.com/anotherhadi/ilovetui"
+)
+
+type sidebarState string
+
+const (
+	sidebarHidden    sidebarState = "hidden"
+	sidebarCollapsed sidebarState = "collapsed"
+	sidebarExpanded  sidebarState = "expanded"
+)
+
+func (m *Model) cycleSidebarState() {
+	switch m.sidebarState {
+	case sidebarHidden:
+		m.sidebarState = sidebarCollapsed
+	case sidebarCollapsed:
+		m.sidebarState = sidebarExpanded
+	default:
+		m.sidebarState = sidebarHidden
+	}
+}
+
+func (m Model) getSidebarWidth() int {
+	switch m.sidebarState {
+	case sidebarHidden:
+		return 0
+	case sidebarCollapsed:
+		return 8
+	default:
+		return 18
+	}
+}
+
+func (m *Model) renderSidebar() string {
+	if m.sidebarState == sidebarHidden {
+		return ""
+	}
+	// content width inside bordered panel
+	inner := m.getSidebarWidth() - 2
+
+	titleText := "SETTUINGS"
+	if m.sidebarState == sidebarCollapsed {
+		titleText = "STUI"
+	}
+	title := lipgloss.NewStyle().Width(inner).Bold(true).Foreground(ilovetui.S.Primary).Padding(0, 1).Render(titleText)
+
+	divider := strings.Repeat("─", inner)
+
+	badgeSelected := lipgloss.NewStyle().Foreground(ilovetui.S.Primary).Bold(true)
+	badgeNormal := lipgloss.NewStyle().Foreground(ilovetui.S.Subtle)
+	textSelected := lipgloss.NewStyle().Foreground(ilovetui.S.Primary)
+	textNormal := lipgloss.NewStyle().Foreground(ilovetui.S.Text)
+	lineStyle := lipgloss.NewStyle().Width(inner).Padding(0, 1)
+
+	var items strings.Builder
+	badgeUnread := lipgloss.NewStyle().Foreground(ilovetui.S.Warning).Bold(true)
+
+	for i, entry := range pageRegistry {
+		selected := entry.id == m.page
+		badgeStyle, textStyle := badgeNormal, textNormal
+		if selected {
+			badgeStyle, textStyle = badgeSelected, textSelected
+		} else if entry.hasUpdate != nil && entry.hasUpdate(m) {
+			badgeStyle = badgeUnread
+		}
+		icon := ""
+		if entry.icon != nil {
+			icon = entry.icon()
+		}
+		label := " " + icon
+		if m.sidebarState != sidebarCollapsed {
+			label += string(entry.id)
+		}
+		line := lineStyle.Render(badgeStyle.Render(strconv.Itoa(i+1)) + textStyle.Render(label))
+		if m.sidebarState == sidebarCollapsed && icon == "" {
+			line = " " + line
+		}
+		items.WriteString(line + "\n")
+	}
+
+	parts := []string{
+		title,
+		lipgloss.NewStyle().Foreground(ilovetui.S.Subtle).Render(divider),
+		items.String(),
+	}
+	body := lipgloss.JoinVertical(lipgloss.Left, parts...)
+
+	return ilovetui.S.Panel.Width(m.getSidebarWidth()).Height(m.height).Render(body)
+}

internal/ui/app/update.go

@@ -0,0 +1,116 @@
+package app
+
+import (
+	"os/exec"
+
+	"charm.land/bubbles/v2/key"
+	tea "charm.land/bubbletea/v2"
+	"github.com/anotherhadi/settuings/internal/keys"
+	notificationsUI "github.com/anotherhadi/settuings/internal/ui/components/notifications"
+	"github.com/anotherhadi/settuings/internal/util"
+)
+
+func (m Model) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
+	switch msg := msg.(type) {
+	case notificationsUI.NotificationMsg:
+		var cmd tea.Cmd
+		m.notifications, cmd = m.notifications.Update(msg)
+		return m, cmd
+	case notificationsUI.DismissMsg:
+		var cmd tea.Cmd
+		m.notifications, cmd = m.notifications.Update(msg)
+		return m, cmd
+	}
+
+	var activateCmd tea.Cmd
+
+	switch msg := msg.(type) {
+	case tea.WindowSizeMsg:
+		m.width = msg.Width
+		m.height = msg.Height
+		m.resizeChildren()
+
+	case tea.KeyPressMsg:
+		if key.Matches(msg, keys.Keys.Global.Quit) && !m.activeIsEditing() {
+			m.deactivatePage(m.page)
+			return m, tea.Quit
+		}
+
+		if key.Matches(msg, keys.Keys.Global.OpenLogs) {
+			return m, tea.ExecProcess(exec.Command(util.ResolveEditor(), m.logPath), nil) // #nosec G204 -- editor from trusted config/$EDITOR, logPath is a fixed path
+		}
+
+		if !m.activeIsEditing() {
+			switch {
+			case key.Matches(msg, keys.Keys.Global.ToggleSidebar):
+				m.cycleSidebarState()
+				m.resizeChildren()
+
+			default:
+				if p, ok := pageShortcuts[msg.String()]; ok {
+					prev := m.page
+					m.page = p
+					if prev != p {
+						m.deactivatePage(prev)
+						activateCmd = m.activatePage(p)
+					}
+				}
+			}
+		}
+	}
+
+	var cmd tea.Cmd
+	m, cmd = m.updateActivePage(msg)
+	return m, tea.Batch(activateCmd, cmd)
+}
+
+func (m *Model) activatePage(p page) tea.Cmd {
+	for _, e := range pageRegistry {
+		if e.id == p && e.activate != nil {
+			return e.activate(m)
+		}
+	}
+	return nil
+}
+
+// deactivatePage synchronously tears down page p's background state, if it
+// has any (see pageEntry.deactivate).
+func (m *Model) deactivatePage(p page) {
+	for _, e := range pageRegistry {
+		if e.id == p && e.deactivate != nil {
+			e.deactivate(m)
+			return
+		}
+	}
+}
+
+func (m Model) activeIsEditing() bool {
+	for _, e := range pageRegistry {
+		if e.id == m.page && e.isEditing != nil {
+			return e.isEditing(&m)
+		}
+	}
+	return false
+}
+
+func (m Model) updateActivePage(msg tea.Msg) (Model, tea.Cmd) {
+	for _, e := range pageRegistry {
+		if e.id == m.page && e.update != nil {
+			cmd := e.update(&m, msg)
+			return m, cmd
+		}
+	}
+	return m, nil
+}
+
+func (m *Model) resizeChildren() {
+	sidebarW := m.getSidebarWidth()
+	h := m.height
+	for _, e := range pageRegistry {
+		if e.resize == nil {
+			continue
+		}
+		e.resize(m, m.width-sidebarW, h)
+	}
+	m.notifications.SetSize(m.width, m.height)
+}

internal/ui/app/view.go

@@ -0,0 +1,44 @@
+package app
+
+import (
+	tea "charm.land/bubbletea/v2"
+	"charm.land/lipgloss/v2"
+	ilovetui "github.com/anotherhadi/ilovetui"
+)
+
+func (m Model) newView(content string) tea.View {
+	v := tea.NewView(content)
+	v.AltScreen = true
+	v.WindowTitle = "Settuings"
+	return v
+}
+
+func (m Model) View() tea.View {
+	if m.width == 0 {
+		return m.newView("")
+	}
+
+	rendered := m.renderNormal()
+	if m.notifications.HasNotifications() {
+		rendered = m.notifications.View(rendered)
+	}
+
+	v := m.newView(rendered)
+	v.MouseMode = tea.MouseModeCellMotion
+	return v
+}
+
+func (m Model) renderNormal() string {
+	sidebar := m.renderSidebar()
+	content := m.renderActivePage()
+	return lipgloss.JoinHorizontal(lipgloss.Top, sidebar, content)
+}
+
+func (m *Model) renderActivePage() string {
+	for _, e := range pageRegistry {
+		if e.id == m.page && e.render != nil {
+			return e.render(m)
+		}
+	}
+	return ilovetui.S.Faint.Render("Work in progress")
+}

internal/ui/audio/apps.go

@@ -0,0 +1,173 @@
+package audio
+
+import (
+	"strings"
+
+	"charm.land/bubbles/v2/key"
+	tea "charm.land/bubbletea/v2"
+	"charm.land/lipgloss/v2"
+	ilovetui "github.com/anotherhadi/ilovetui"
+	"github.com/anotherhadi/settuings/internal/audio"
+	"github.com/anotherhadi/settuings/internal/keys"
+)
+
+type appsState struct {
+	loading  bool
+	err      error
+	streams  []audio.Stream
+	cursor   int
+	pending  bool
+	feedback string
+}
+
+func newAppsState() appsState {
+	return appsState{loading: true}
+}
+
+func (m *Model) handleAppsList(msg appsListMsg) {
+	m.apps.loading = false
+	m.apps.err = msg.err
+	if msg.err != nil {
+		return
+	}
+	m.apps.streams = msg.streams
+	if m.apps.cursor >= len(m.apps.streams) {
+		m.apps.cursor = max(0, len(m.apps.streams)-1)
+	}
+}
+
+func (m *Model) handleAppsAction(msg appsActionMsg) tea.Cmd {
+	m.apps.pending = false
+	if msg.err != nil {
+		m.apps.feedback = msg.err.Error()
+		return nil
+	}
+	return fetchAppsCmd()
+}
+
+func (m Model) selectedStream() *audio.Stream {
+	if m.apps.cursor < 0 || m.apps.cursor >= len(m.apps.streams) {
+		return nil
+	}
+	return &m.apps.streams[m.apps.cursor]
+}
+
+func (m *Model) updateApps(msg tea.Msg) tea.Cmd {
+	keyMsg, ok := msg.(tea.KeyPressMsg)
+	if !ok {
+		return nil
+	}
+	g := keys.Keys.Global
+	a := keys.Keys.Audio
+
+	switch {
+	case key.Matches(keyMsg, g.Up):
+		if m.apps.cursor > 0 {
+			m.apps.cursor--
+		}
+	case key.Matches(keyMsg, g.Down):
+		if m.apps.cursor < len(m.apps.streams)-1 {
+			m.apps.cursor++
+		}
+	case key.Matches(keyMsg, g.Left):
+		return m.adjustStreamVolume(-volumeStep)
+	case key.Matches(keyMsg, g.Right):
+		return m.adjustStreamVolume(volumeStep)
+	case key.Matches(keyMsg, a.Refresh):
+		m.apps.pending = true
+		return fetchAppsCmd()
+	case key.Matches(keyMsg, a.Mute):
+		s := m.selectedStream()
+		if s == nil {
+			return nil
+		}
+		m.apps.feedback = ""
+		m.apps.pending = true
+		return appsToggleMuteCmd(s.ID)
+	}
+	return nil
+}
+
+func (m *Model) adjustStreamVolume(delta int) tea.Cmd {
+	s := m.selectedStream()
+	if s == nil {
+		return nil
+	}
+	pct := s.Volume + delta
+	if pct < 0 {
+		pct = 0
+	} else if pct > 100 {
+		pct = 100
+	}
+	s.Volume = pct
+	m.apps.feedback = ""
+	return appsSetVolumeCmd(s.ID, pct)
+}
+
+func sectionTitle(k audio.StreamKind) string {
+	if k == audio.StreamInput {
+		return "INPUT STREAMS (recording)"
+	}
+	return "OUTPUT STREAMS (playback)"
+}
+
+// windowAroundCursor picks a [start, end) slice of size items (or fewer, if
+// total is smaller) that keeps cursor in view.
+func windowAroundCursor(cursor, total, size int) (start, end int) {
+	if size >= total {
+		return 0, total
+	}
+	start = cursor - size/2
+	if start < 0 {
+		start = 0
+	}
+	if start+size > total {
+		start = total - size
+	}
+	return start, start + size
+}
+
+func (m Model) renderApps(width, height int) string {
+	if m.apps.loading {
+		return ilovetui.S.Faint.Render("Loading application streams…")
+	}
+
+	header := lipgloss.NewStyle().Bold(true).Foreground(ilovetui.S.Subtle).Render("APPLICATIONS")
+	if m.apps.pending {
+		header += mutedStyle().Render("  refreshing…")
+	}
+
+	if m.apps.err != nil {
+		return lipgloss.JoinVertical(lipgloss.Left, header, "", errorStyle().Render(m.apps.err.Error()))
+	}
+	if len(m.apps.streams) == 0 {
+		return lipgloss.JoinVertical(lipgloss.Left, header, "", ilovetui.S.Faint.Render("No application is currently playing or recording audio."))
+	}
+
+	maxItems := (height - 3) / streamRowHeight
+	if maxItems < 1 {
+		maxItems = 1
+	}
+	start, end := windowAroundCursor(m.apps.cursor, len(m.apps.streams), maxItems)
+
+	sectionStyle := lipgloss.NewStyle().Bold(true).Foreground(ilovetui.S.Subtle)
+	var b strings.Builder
+	lastKind := audio.StreamKind(-1)
+	for i := start; i < end; i++ {
+		s := m.apps.streams[i]
+		if s.Kind != lastKind {
+			b.WriteString(sectionStyle.Render(sectionTitle(s.Kind)) + "\n\n")
+			lastKind = s.Kind
+		}
+		b.WriteString(renderStreamRow(s, i == m.apps.cursor, width))
+		b.WriteString("\n\n")
+	}
+	list := strings.TrimRight(b.String(), "\n")
+
+	footer := ""
+	if m.apps.feedback != "" {
+		footer = subtleStyle().Render(m.apps.feedback)
+	}
+
+	return lipgloss.JoinVertical(lipgloss.Left, header, "", list, footer)
+}

internal/ui/audio/commands.go

@@ -0,0 +1,96 @@
+package audio
+
+import (
+	"time"
+
+	tea "charm.land/bubbletea/v2"
+	"github.com/anotherhadi/settuings/internal/audio"
+	notificationsUI "github.com/anotherhadi/settuings/internal/ui/components/notifications"
+)
+
+const tickInterval = 5 * time.Second
+
+func tickCmd() tea.Cmd {
+	return tea.Tick(tickInterval, func(time.Time) tea.Msg { return tickMsg{} })
+}
+
+func checkCmd() tea.Cmd {
+	return func() tea.Msg { return checkMsg{err: audio.CheckAvailable()} }
+}
+
+func fetchOutputCmd() tea.Cmd {
+	return func() tea.Msg {
+		devices, err := audio.ListSinks()
+		return outputListMsg{devices: devices, err: err}
+	}
+}
+
+func fetchInputCmd() tea.Cmd {
+	return func() tea.Msg {
+		devices, err := audio.ListSources()
+		return inputListMsg{devices: devices, err: err}
+	}
+}
+
+func fetchAppsCmd() tea.Cmd {
+	return func() tea.Msg {
+		streams, err := audio.ListStreams()
+		return appsListMsg{streams: streams, err: err}
+	}
+}
+
+func outputSetVolumeCmd(id string, pct int) tea.Cmd {
+	return func() tea.Msg { return outputActionMsg{err: audio.SetVolume(id, pct)} }
+}
+
+func outputToggleMuteCmd(id string) tea.Cmd {
+	return func() tea.Msg { return outputActionMsg{err: audio.ToggleMute(id)} }
+}
+
+func outputSetDefaultCmd(id string) tea.Cmd {
+	return func() tea.Msg { return outputActionMsg{err: audio.SetDefault(id)} }
+}
+
+func outputTestToneCmd(sinkID string) tea.Cmd {
+	return func() tea.Msg { return outputActionMsg{err: audio.PlayTestTone(sinkID)} }
+}
+
+func inputSetVolumeCmd(id string, pct int) tea.Cmd {
+	return func() tea.Msg { return inputActionMsg{err: audio.SetVolume(id, pct)} }
+}
+
+func inputToggleMuteCmd(id string) tea.Cmd {
+	return func() tea.Msg { return inputActionMsg{err: audio.ToggleMute(id)} }
+}
+
+func inputSetDefaultCmd(id string) tea.Cmd {
+	return func() tea.Msg { return inputActionMsg{err: audio.SetDefault(id)} }
+}
+
+func appsSetVolumeCmd(id string, pct int) tea.Cmd {
+	return func() tea.Msg { return appsActionMsg{err: audio.SetVolume(id, pct)} }
+}
+
+func appsToggleMuteCmd(id string) tea.Cmd {
+	return func() tea.Msg { return appsActionMsg{err: audio.ToggleMute(id)} }
+}
+
+func notifyCmd(title, body string) tea.Cmd {
+	return func() tea.Msg {
+		return notificationsUI.NotificationMsg{Title: title, Body: body, Kind: notificationsUI.KindInfo}
+	}
+}
+
+func startLevelMonitorCmd(sourceID string) tea.Cmd {
+	return func() tea.Msg {
+		mon, err := audio.StartLevelMonitor(sourceID)
+		return levelStartedMsg{monitor: mon, err: err}
+	}
+}
+
+func waitLevelCmd(mon *audio.LevelMonitor) tea.Cmd {
+	return func() tea.Msg {
+		peak, err := mon.Next()
+		return levelMsg{peak: peak, err: err}
+	}
+}

internal/ui/audio/input.go

@@ -0,0 +1,220 @@
+package audio
+
+import (
+	"strings"
+
+	"charm.land/bubbles/v2/key"
+	tea "charm.land/bubbletea/v2"
+	"charm.land/lipgloss/v2"
+	ilovetui "github.com/anotherhadi/ilovetui"
+	"github.com/anotherhadi/settuings/internal/audio"
+	"github.com/anotherhadi/settuings/internal/keys"
+)
+
+type inputState struct {
+	loading  bool
+	err      error
+	devices  []audio.Device
+	cursor   int
+	pending  bool
+	feedback string
+
+	testing bool
+	monitor *audio.LevelMonitor
+	level   float64 // last peak reading in [0, 1], only meaningful while testing
+}
+
+func newInputState() inputState {
+	return inputState{loading: true}
+}
+
+// stopLevelMonitor tears down a running live input-level test, if any. Safe
+// to call unconditionally.
+func (s *inputState) stopLevelMonitor() {
+	if s.monitor != nil {
+		s.monitor.Stop()
+		s.monitor = nil
+	}
+	s.testing = false
+	s.level = 0
+}
+
+func (m *Model) handleInputList(msg inputListMsg) {
+	m.input.loading = false
+	m.input.err = msg.err
+	if msg.err != nil {
+		return
+	}
+	m.input.devices = msg.devices
+	if m.input.cursor >= len(m.input.devices) {
+		m.input.cursor = max(0, len(m.input.devices)-1)
+	}
+}
+
+func (m *Model) handleInputAction(msg inputActionMsg) tea.Cmd {
+	m.input.pending = false
+	if msg.err != nil {
+		m.input.feedback = msg.err.Error()
+		return nil
+	}
+	return fetchInputCmd()
+}
+
+// handleLevelStarted reacts to a StartLevelMonitor result. If the user
+// toggled testing off again before this arrived, the freshly-started monitor
+// is stopped immediately instead of being adopted.
+func (m *Model) handleLevelStarted(msg levelStartedMsg) tea.Cmd {
+	if msg.err != nil {
+		m.input.testing = false
+		m.input.feedback = msg.err.Error()
+		return nil
+	}
+	if !m.input.testing {
+		msg.monitor.Stop()
+		return nil
+	}
+	m.input.monitor = msg.monitor
+	return waitLevelCmd(msg.monitor)
+}
+
+// handleLevel reacts to one peak reading, re-arming the wait for the next
+// one as long as the test is still active.
+func (m *Model) handleLevel(msg levelMsg) tea.Cmd {
+	if !m.input.testing || m.input.monitor == nil {
+		return nil
+	}
+	if msg.err != nil {
+		m.input.feedback = "Input test stopped: " + msg.err.Error()
+		m.input.stopLevelMonitor()
+		return nil
+	}
+	m.input.level = msg.peak
+	return waitLevelCmd(m.input.monitor)
+}
+
+func (m Model) selectedInput() *audio.Device {
+	if m.input.cursor < 0 || m.input.cursor >= len(m.input.devices) {
+		return nil
+	}
+	return &m.input.devices[m.input.cursor]
+}
+
+func (m *Model) updateInput(msg tea.Msg) tea.Cmd {
+	keyMsg, ok := msg.(tea.KeyPressMsg)
+	if !ok {
+		return nil
+	}
+	g := keys.Keys.Global
+	a := keys.Keys.Audio
+
+	switch {
+	case key.Matches(keyMsg, g.Up):
+		if m.input.cursor > 0 {
+			m.input.stopLevelMonitor()
+			m.input.cursor--
+		}
+	case key.Matches(keyMsg, g.Down):
+		if m.input.cursor < len(m.input.devices)-1 {
+			m.input.stopLevelMonitor()
+			m.input.cursor++
+		}
+	case key.Matches(keyMsg, g.Left):
+		return m.adjustInputVolume(-volumeStep)
+	case key.Matches(keyMsg, g.Right):
+		return m.adjustInputVolume(volumeStep)
+	case key.Matches(keyMsg, a.Refresh):
+		m.input.pending = true
+		return fetchInputCmd()
+	case key.Matches(keyMsg, a.Mute):
+		dev := m.selectedInput()
+		if dev == nil {
+			return nil
+		}
+		m.input.feedback = ""
+		m.input.pending = true
+		return inputToggleMuteCmd(dev.ID)
+	case key.Matches(keyMsg, a.Select):
+		dev := m.selectedInput()
+		if dev == nil {
+			return nil
+		}
+		if dev.Default {
+			m.input.feedback = "Already the default input."
+			return nil
+		}
+		m.input.feedback = ""
+		m.input.pending = true
+		return inputSetDefaultCmd(dev.ID)
+	case key.Matches(keyMsg, a.Test):
+		dev := m.selectedInput()
+		if dev == nil {
+			return nil
+		}
+		if m.input.testing {
+			m.input.stopLevelMonitor()
+			return nil
+		}
+		m.input.testing = true
+		m.input.feedback = ""
+		return startLevelMonitorCmd(dev.ID)
+	}
+	return nil
+}
+
+func (m *Model) adjustInputVolume(delta int) tea.Cmd {
+	dev := m.selectedInput()
+	if dev == nil {
+		return nil
+	}
+	pct := dev.Volume + delta
+	if pct < 0 {
+		pct = 0
+	} else if pct > 100 {
+		pct = 100
+	}
+	dev.Volume = pct
+	m.input.feedback = ""
+	return inputSetVolumeCmd(dev.ID, pct)
+}
+
+func (m Model) renderInput(width, height int) string {
+	if m.input.loading {
+		return ilovetui.S.Faint.Render("Loading input devices…")
+	}
+
+	header := lipgloss.NewStyle().Bold(true).Foreground(ilovetui.S.Subtle).Render("INPUT DEVICES")
+	if m.input.pending {
+		header += mutedStyle().Render("  refreshing…")
+	}
+
+	if m.input.err != nil {
+		return lipgloss.JoinVertical(lipgloss.Left, header, "", errorStyle().Render(m.input.err.Error()))
+	}
+	if len(m.input.devices) == 0 {
+		return lipgloss.JoinVertical(lipgloss.Left, header, "", ilovetui.S.Faint.Render("No input devices found."))
+	}
+
+	available := (height - 3) / deviceRowHeight
+	if available < 1 {
+		available = 1
+	}
+	p, start, end := paginate(m.input.cursor, len(m.input.devices), available)
+
+	var rows []string
+	for i := start; i < end; i++ {
+		selected := i == m.input.cursor
+		row := renderDeviceRow(m.input.devices[i], selected, width)
+		if selected && m.input.testing {
+			row += "\n    " + renderLevelMeter(m.input.level, barWidth(width))
+		}
+		rows = append(rows, row)
+	}
+	list := strings.Join(rows, "\n\n")
+
+	footer := renderPaginatorDots(p)
+	if m.input.feedback != "" {
+		footer = subtleStyle().Render(m.input.feedback)
+	}
+
+	return lipgloss.JoinVertical(lipgloss.Left, header, "", list, footer)
+}

internal/ui/audio/keymap.go

@@ -0,0 +1,51 @@
+package audio
+
+import (
+	"charm.land/bubbles/v2/key"
+	"github.com/anotherhadi/settuings/internal/keys"
+)
+
+// audioKeyMap renders the bottom help bar, adapting to the active tab.
+type audioKeyMap struct {
+	m     Model
+	width int
+}
+
+// relabel reuses an existing binding's keys under a different help
+// description. Volume adjustment reuses the global Left/Right binding (h/l,
+// arrow keys), which is normally labelled "scroll left/right" — here it
+// means something else, so the help bar needs its own wording.
+func relabel(b key.Binding, desc string) key.Binding {
+	return key.NewBinding(key.WithKeys(b.Keys()...), key.WithHelp(b.Help().Key, desc))
+}
+
+func (k audioKeyMap) ShortHelp() []key.Binding {
+	g := keys.Keys.Global
+	a := keys.Keys.Audio
+	volDown, volUp := relabel(g.Left, "vol down"), relabel(g.Right, "vol up")
+
+	switch k.m.active {
+	case tabApps:
+		return []key.Binding{g.Up, g.Down, volDown, volUp, a.Mute, g.CycleFocus, g.Help}
+	default:
+		return []key.Binding{g.Up, g.Down, volDown, volUp, a.Mute, a.Test, g.Help}
+	}
+}
+
+func (k audioKeyMap) FullHelp() [][]key.Binding {
+	g := keys.Keys.Global
+	a := keys.Keys.Audio
+	volDown, volUp := relabel(g.Left, "volume down"), relabel(g.Right, "volume up")
+
+	var bindings []key.Binding
+	switch k.m.active {
+	case tabOutput:
+		bindings = []key.Binding{g.Up, g.Down, volDown, volUp, a.Select, a.Mute, a.Test, a.Refresh, g.CycleFocus}
+	case tabInput:
+		bindings = []key.Binding{g.Up, g.Down, volDown, volUp, a.Select, a.Mute, relabel(a.Test, "test mic"), a.Refresh, g.CycleFocus}
+	case tabApps:
+		bindings = []key.Binding{g.Up, g.Down, volDown, volUp, a.Mute, a.Refresh, g.CycleFocus}
+	}
+	bindings = append(bindings, g.CommonBindings()...)
+	return keys.ChunkByWidth(bindings, k.width)
+}

internal/ui/audio/messages.go

@@ -0,0 +1,46 @@
+package audio
+
+import "github.com/anotherhadi/settuings/internal/audio"
+
+// checkMsg carries the result of audio.CheckAvailable.
+type checkMsg struct{ err error }
+
+// tickMsg triggers a periodic refresh of every tab while this page is active.
+type tickMsg struct{}
+
+type outputListMsg struct {
+	devices []audio.Device
+	err     error
+}
+
+type inputListMsg struct {
+	devices []audio.Device
+	err     error
+}
+
+type appsListMsg struct {
+	streams []audio.Stream
+	err     error
+}
+
+// outputActionMsg carries the result of a control action (set volume, mute,
+// set default, play test tone) performed on the Output tab.
+type outputActionMsg struct{ err error }
+
+// inputActionMsg is the Input tab's equivalent of outputActionMsg.
+type inputActionMsg struct{ err error }
+
+// appsActionMsg is the Apps tab's equivalent of outputActionMsg.
+type appsActionMsg struct{ err error }
+
+// levelStartedMsg carries the result of starting a live input-level meter.
+type levelStartedMsg struct {
+	monitor *audio.LevelMonitor
+	err     error
+}
+
+// levelMsg carries one peak reading from the live input-level meter.
+type levelMsg struct {
+	peak float64
+	err  error
+}

internal/ui/audio/model.go

@@ -0,0 +1,106 @@
+// Package audio provides the "Audio" TUI page: a thin, tabbed wrapper around
+// wpctl (and the pw-play/pw-cat helper tools that ship with it) covering
+// output devices, input devices, and per-application streams, in the same
+// spirit as the network page's tabs.
+package audio
+
+import (
+	"charm.land/bubbles/v2/help"
+	tea "charm.land/bubbletea/v2"
+	ilovetui "github.com/anotherhadi/ilovetui"
+	"github.com/anotherhadi/settuings/internal/icons"
+)
+
+type tab int
+
+const (
+	tabOutput tab = iota
+	tabInput
+	tabApps
+)
+
+var visibleTabs = []tab{tabOutput, tabInput, tabApps}
+
+func (t tab) label() string {
+	switch t {
+	case tabOutput:
+		return "Output"
+	case tabInput:
+		return "Input"
+	case tabApps:
+		return "Apps"
+	default:
+		return ""
+	}
+}
+
+func (t tab) icon() string {
+	switch t {
+	case tabOutput:
+		return icons.I.Output
+	case tabInput:
+		return icons.I.Input
+	case tabApps:
+		return icons.I.Apps
+	default:
+		return ""
+	}
+}
+
+type Model struct {
+	active tab
+	width  int
+	height int
+	help   help.Model
+
+	checkErr error // reason wpctl is unusable; nil once confirmed OK
+	checked  bool
+
+	output outputState
+	input  inputState
+	apps   appsState
+}
+
+func New() Model {
+	return Model{
+		active: tabOutput,
+		help:   ilovetui.NewHelp(),
+		output: newOutputState(),
+		input:  newInputState(),
+		apps:   newAppsState(),
+	}
+}
+
+func (m Model) Init() tea.Cmd {
+	return nil
+}
+
+// Activate is called every time the user navigates onto this page. It
+// re-checks wpctl availability, kicks off a fetch for every tab, and starts
+// the periodic auto-refresh loop.
+func (m *Model) Activate() tea.Cmd {
+	return tea.Batch(
+		checkCmd(),
+		fetchOutputCmd(),
+		fetchInputCmd(),
+		fetchAppsCmd(),
+		tickCmd(),
+	)
+}
+
+// Deactivate is called synchronously when the user navigates away from this
+// page (or quits) so the live input-level meter, if running, never leaks a
+// background pw-cat process.
+func (m *Model) Deactivate() {
+	m.input.stopLevelMonitor()
+}
+
+func (m Model) IsEditing() bool {
+	return false
+}
+
+func (m *Model) SetSize(w, h int) {
+	m.width = w
+	m.height = h
+	m.help.SetWidth(w - 2)
+}

internal/ui/audio/output.go

@@ -0,0 +1,165 @@
+package audio
+
+import (
+	"strings"
+
+	"charm.land/bubbles/v2/key"
+	tea "charm.land/bubbletea/v2"
+	"charm.land/lipgloss/v2"
+	ilovetui "github.com/anotherhadi/ilovetui"
+	"github.com/anotherhadi/settuings/internal/audio"
+	"github.com/anotherhadi/settuings/internal/keys"
+)
+
+const volumeStep = 5
+
+type outputState struct {
+	loading  bool
+	err      error
+	devices  []audio.Device
+	cursor   int
+	pending  bool
+	feedback string
+}
+
+func newOutputState() outputState {
+	return outputState{loading: true}
+}
+
+func (m *Model) handleOutputList(msg outputListMsg) {
+	m.output.loading = false
+	m.output.err = msg.err
+	if msg.err != nil {
+		return
+	}
+	m.output.devices = msg.devices
+	if m.output.cursor >= len(m.output.devices) {
+		m.output.cursor = max(0, len(m.output.devices)-1)
+	}
+}
+
+func (m *Model) handleOutputAction(msg outputActionMsg) tea.Cmd {
+	m.output.pending = false
+	if msg.err != nil {
+		m.output.feedback = msg.err.Error()
+		return nil
+	}
+	return fetchOutputCmd()
+}
+
+func (m Model) selectedOutput() *audio.Device {
+	if m.output.cursor < 0 || m.output.cursor >= len(m.output.devices) {
+		return nil
+	}
+	return &m.output.devices[m.output.cursor]
+}
+
+func (m *Model) updateOutput(msg tea.Msg) tea.Cmd {
+	keyMsg, ok := msg.(tea.KeyPressMsg)
+	if !ok {
+		return nil
+	}
+	g := keys.Keys.Global
+	a := keys.Keys.Audio
+
+	switch {
+	case key.Matches(keyMsg, g.Up):
+		if m.output.cursor > 0 {
+			m.output.cursor--
+		}
+	case key.Matches(keyMsg, g.Down):
+		if m.output.cursor < len(m.output.devices)-1 {
+			m.output.cursor++
+		}
+	case key.Matches(keyMsg, g.Left):
+		return m.adjustOutputVolume(-volumeStep)
+	case key.Matches(keyMsg, g.Right):
+		return m.adjustOutputVolume(volumeStep)
+	case key.Matches(keyMsg, a.Refresh):
+		m.output.pending = true
+		return fetchOutputCmd()
+	case key.Matches(keyMsg, a.Mute):
+		dev := m.selectedOutput()
+		if dev == nil {
+			return nil
+		}
+		m.output.feedback = ""
+		m.output.pending = true
+		return outputToggleMuteCmd(dev.ID)
+	case key.Matches(keyMsg, a.Select):
+		dev := m.selectedOutput()
+		if dev == nil {
+			return nil
+		}
+		if dev.Default {
+			m.output.feedback = "Already the default output."
+			return nil
+		}
+		m.output.feedback = ""
+		m.output.pending = true
+		return outputSetDefaultCmd(dev.ID)
+	case key.Matches(keyMsg, a.Test):
+		dev := m.selectedOutput()
+		if dev == nil {
+			return nil
+		}
+		return tea.Batch(outputTestToneCmd(dev.ID), notifyCmd("Audio", "Playing test sound on "+dev.Name+"…"))
+	}
+	return nil
+}
+
+// adjustOutputVolume nudges the selected device's volume by delta, updating
+// it locally right away so the bar responds instantly instead of waiting on
+// the round trip to wpctl and back.
+func (m *Model) adjustOutputVolume(delta int) tea.Cmd {
+	dev := m.selectedOutput()
+	if dev == nil {
+		return nil
+	}
+	pct := dev.Volume + delta
+	if pct < 0 {
+		pct = 0
+	} else if pct > 100 {
+		pct = 100
+	}
+	dev.Volume = pct
+	m.output.feedback = ""
+	return outputSetVolumeCmd(dev.ID, pct)
+}
+
+func (m Model) renderOutput(width, height int) string {
+	if m.output.loading {
+		return ilovetui.S.Faint.Render("Loading output devices…")
+	}
+
+	header := lipgloss.NewStyle().Bold(true).Foreground(ilovetui.S.Subtle).Render("OUTPUT DEVICES")
+	if m.output.pending {
+		header += mutedStyle().Render("  refreshing…")
+	}
+
+	if m.output.err != nil {
+		return lipgloss.JoinVertical(lipgloss.Left, header, "", errorStyle().Render(m.output.err.Error()))
+	}
+	if len(m.output.devices) == 0 {
+		return lipgloss.JoinVertical(lipgloss.Left, header, "", ilovetui.S.Faint.Render("No output devices found."))
+	}
+
+	available := (height - 3) / deviceRowHeight
+	if available < 1 {
+		available = 1
+	}
+	p, start, end := paginate(m.output.cursor, len(m.output.devices), available)
+
+	var rows []string
+	for i := start; i < end; i++ {
+		rows = append(rows, renderDeviceRow(m.output.devices[i], i == m.output.cursor, width))
+	}
+	list := strings.Join(rows, "\n\n")
+
+	footer := renderPaginatorDots(p)
+	if m.output.feedback != "" {
+		footer = subtleStyle().Render(m.output.feedback)
+	}
+
+	return lipgloss.JoinVertical(lipgloss.Left, header, "", list, footer)
+}

internal/ui/audio/pagination.go

@@ -0,0 +1,44 @@
+package audio
+
+import (
+	"charm.land/bubbles/v2/paginator"
+	"charm.land/lipgloss/v2"
+	ilovetui "github.com/anotherhadi/ilovetui"
+)
+
+func newPaginator() paginator.Model {
+	p := paginator.New()
+	p.Type = paginator.Dots
+	p.ActiveDot = lipgloss.NewStyle().Foreground(ilovetui.S.Primary).Render("•")
+	p.InactiveDot = lipgloss.NewStyle().Foreground(ilovetui.S.Subtle).Render("•")
+	return p
+}
+
+// paginate slices a list of length total into pages of availableRows items,
+// deriving the current page from cursor (the globally-indexed selection)
+// rather than tracking page state separately. It returns the configured
+// paginator and the [start, end) bounds of the visible slice.
+func paginate(cursor, total, availableRows int) (p paginator.Model, start, end int) {
+	p = newPaginator()
+	perPage := availableRows
+	if perPage < 1 {
+		perPage = 1
+	}
+	p.PerPage = perPage
+	p.SetTotalPages(total)
+	if p.TotalPages > 0 {
+		p.Page = cursor / perPage
+		if p.Page >= p.TotalPages {
+			p.Page = p.TotalPages - 1
+		}
+	}
+	start, end = p.GetSliceBounds(total)
+	return p, start, end
+}
+
+func renderPaginatorDots(p paginator.Model) string {
+	if p.TotalPages <= 1 {
+		return ""
+	}
+	return mutedStyle().Render(p.View())
+}

internal/ui/audio/rows.go

@@ -0,0 +1,62 @@
+package audio
+
+import (
+	"charm.land/lipgloss/v2"
+	ilovetui "github.com/anotherhadi/ilovetui"
+	"github.com/anotherhadi/settuings/internal/audio"
+	"github.com/anotherhadi/settuings/internal/icons"
+)
+
+// deviceRowHeight and streamRowHeight are the number of lines each list row
+// occupies (name line + bar line + one blank spacer line), used to size how
+// many rows fit in the available height.
+const (
+	deviceRowHeight = 3
+	streamRowHeight = 3
+)
+
+// barWidth derives a volume-bar width from the row's available width,
+// leaving room for the name line's cursor/default marker on one side and the
+// percentage/MUTED label on the other.
+func barWidth(rowWidth int) int {
+	w := rowWidth - 24
+	switch {
+	case w > 30:
+		w = 30
+	case w < 10:
+		w = 10
+	}
+	return w
+}
+
+func renderDeviceRow(d audio.Device, selected bool, width int) string {
+	textStyle := lipgloss.NewStyle().Foreground(ilovetui.S.Text)
+	if selected {
+		textStyle = textStyle.Bold(true).Foreground(ilovetui.S.Primary)
+	}
+	cursor := "  "
+	if selected {
+		cursor = "> "
+	}
+	name := textStyle.Render(d.Name)
+	if d.Default {
+		name += " " + successStyle().Render(icons.I.Check+"default")
+	}
+	nameLine := cursor + name
+	barLine := "    " + renderVolumeBar(d.Volume, barWidth(width), d.Muted)
+	return nameLine + "\n" + barLine
+}
+
+func renderStreamRow(s audio.Stream, selected bool, width int) string {
+	textStyle := lipgloss.NewStyle().Foreground(ilovetui.S.Text)
+	if selected {
+		textStyle = textStyle.Bold(true).Foreground(ilovetui.S.Primary)
+	}
+	cursor := "  "
+	if selected {
+		cursor = "> "
+	}
+	nameLine := cursor + textStyle.Render(s.App)
+	barLine := "    " + renderVolumeBar(s.Volume, barWidth(width), s.Muted)
+	return nameLine + "\n" + barLine
+}

internal/ui/audio/slider.go

@@ -0,0 +1,61 @@
+package audio
+
+import (
+	"fmt"
+	"strings"
+
+	"charm.land/lipgloss/v2"
+	ilovetui "github.com/anotherhadi/ilovetui"
+)
+
+// renderVolumeBar draws a static block-bar slider. bubbles has no dedicated
+// slider widget, only an animated progress bar meant for async progress, not
+// an immediately-adjustable value — a static bar reflects every keypress
+// instantly without depending on progress.Model's frame-tick animation.
+func renderVolumeBar(pct, barWidth int, muted bool) string {
+	if barWidth < 4 {
+		barWidth = 4
+	}
+	filled := pct * barWidth / 100
+	switch {
+	case filled > barWidth:
+		filled = barWidth
+	case filled < 0:
+		filled = 0
+	}
+	bar := strings.Repeat("█", filled) + strings.Repeat("░", barWidth-filled)
+	pctText := fmt.Sprintf("%3d%%", pct)
+
+	barColor := ilovetui.S.Primary
+	if muted {
+		barColor = ilovetui.S.Subtle
+	}
+	line := lipgloss.NewStyle().Foreground(barColor).Render("["+bar+"]") + " " + subtleStyle().Render(pctText)
+	if muted {
+		line += " " + errorStyle().Bold(true).Render("MUTED")
+	}
+	return line
+}
+
+// renderLevelMeter draws a live input-level meter from a peak value in
+// [0, 1], used to test a microphone.
+func renderLevelMeter(peak float64, barWidth int) string {
+	if barWidth < 4 {
+		barWidth = 4
+	}
+	filled := int(peak*float64(barWidth) + 0.5)
+	switch {
+	case filled > barWidth:
+		filled = barWidth
+	case filled < 0:
+		filled = 0
+	}
+	color := ilovetui.S.Success
+	if peak > 0.9 {
+		color = ilovetui.S.Error
+	} else if peak > 0.65 {
+		color = ilovetui.S.Warning
+	}
+	bar := strings.Repeat("█", filled) + strings.Repeat("░", barWidth-filled)
+	return "Level: " + lipgloss.NewStyle().Foreground(color).Render("["+bar+"]")
+}

internal/ui/audio/style.go

@@ -0,0 +1,22 @@
+package audio
+
+import (
+	"charm.land/lipgloss/v2"
+	ilovetui "github.com/anotherhadi/ilovetui"
+)
+
+func errorStyle() lipgloss.Style {
+	return lipgloss.NewStyle().Foreground(ilovetui.S.Error)
+}
+
+func successStyle() lipgloss.Style {
+	return lipgloss.NewStyle().Foreground(ilovetui.S.Success)
+}
+
+func subtleStyle() lipgloss.Style {
+	return lipgloss.NewStyle().Foreground(ilovetui.S.Subtle)
+}
+
+func mutedStyle() lipgloss.Style {
+	return lipgloss.NewStyle().Foreground(ilovetui.S.Muted)
+}

internal/ui/audio/tabbar.go

@@ -0,0 +1,49 @@
+package audio
+
+import (
+	"strings"
+
+	"charm.land/lipgloss/v2"
+	ilovetui "github.com/anotherhadi/ilovetui"
+)
+
+// cycleTab moves to the next tab, stopping any live input-level test running
+// on the tab being left.
+func (m *Model) cycleTab() {
+	m.input.stopLevelMonitor()
+	for i, t := range visibleTabs {
+		if t == m.active {
+			m.active = visibleTabs[(i+1)%len(visibleTabs)]
+			return
+		}
+	}
+}
+
+func (m Model) renderTabBar(width int) string {
+	active := lipgloss.NewStyle().Bold(true).Foreground(ilovetui.S.Primary).Padding(0, 2).
+		Border(lipgloss.NormalBorder(), false, false, true, false).
+		BorderForeground(ilovetui.S.Primary)
+	inactive := lipgloss.NewStyle().Foreground(ilovetui.S.Subtle).Padding(0, 2).
+		Border(lipgloss.NormalBorder(), false, false, true, false).
+		BorderForeground(ilovetui.S.Subtle)
+
+	var tabs []string
+	for _, t := range visibleTabs {
+		style := inactive
+		if t == m.active {
+			style = active
+		}
+		tabs = append(tabs, style.Render(t.icon()+t.label()))
+	}
+	row := lipgloss.JoinHorizontal(lipgloss.Bottom, tabs...)
+
+	filler := width - lipgloss.Width(row)
+	if filler > 0 {
+		row = lipgloss.JoinHorizontal(lipgloss.Bottom, row,
+			lipgloss.NewStyle().
+				Border(lipgloss.NormalBorder(), false, false, true, false).
+				BorderForeground(ilovetui.S.Subtle).
+				Render(strings.Repeat(" ", filler)))
+	}
+	return row
+}

internal/ui/audio/update.go

@@ -0,0 +1,79 @@
+package audio
+
+import (
+	"charm.land/bubbles/v2/key"
+	tea "charm.land/bubbletea/v2"
+	"github.com/anotherhadi/settuings/internal/keys"
+)
+
+func (m Model) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
+	switch msg := msg.(type) {
+	case checkMsg:
+		wasUnavailable := m.checkErr != nil
+		m.checked = true
+		m.checkErr = msg.err
+		if msg.err == nil && wasUnavailable {
+			// recovered: resume fetching + the auto-refresh loop
+			return m, tea.Batch(fetchOutputCmd(), fetchInputCmd(), fetchAppsCmd(), tickCmd())
+		}
+		return m, nil
+
+	case tickMsg:
+		if m.checkErr != nil {
+			return m, nil
+		}
+		return m, tea.Batch(fetchOutputCmd(), fetchInputCmd(), fetchAppsCmd(), tickCmd())
+
+	case outputListMsg:
+		m.handleOutputList(msg)
+		return m, nil
+	case outputActionMsg:
+		return m, m.handleOutputAction(msg)
+
+	case inputListMsg:
+		m.handleInputList(msg)
+		return m, nil
+	case inputActionMsg:
+		return m, m.handleInputAction(msg)
+	case levelStartedMsg:
+		return m, m.handleLevelStarted(msg)
+	case levelMsg:
+		return m, m.handleLevel(msg)
+
+	case appsListMsg:
+		m.handleAppsList(msg)
+		return m, nil
+	case appsActionMsg:
+		return m, m.handleAppsAction(msg)
+
+	case tea.KeyPressMsg:
+		if m.checkErr != nil {
+			if key.Matches(msg, keys.Keys.Audio.Refresh) {
+				return m, checkCmd()
+			}
+			return m, nil
+		}
+
+		g := keys.Keys.Global
+		switch {
+		case key.Matches(msg, g.CycleFocus):
+			m.cycleTab()
+			return m, nil
+		case key.Matches(msg, g.Help):
+			m.help.ShowAll = !m.help.ShowAll
+			return m, nil
+		}
+
+		var cmd tea.Cmd
+		switch m.active {
+		case tabOutput:
+			cmd = m.updateOutput(msg)
+		case tabInput:
+			cmd = m.updateInput(msg)
+		case tabApps:
+			cmd = m.updateApps(msg)
+		}
+		return m, cmd
+	}
+	return m, nil
+}

internal/ui/audio/view.go

@@ -0,0 +1,85 @@
+package audio
+
+import (
+	"errors"
+	"strings"
+
+	tea "charm.land/bubbletea/v2"
+	"charm.land/lipgloss/v2"
+	ilovetui "github.com/anotherhadi/ilovetui"
+	"github.com/anotherhadi/settuings/internal/audio"
+)
+
+func windowStyle() lipgloss.Style {
+	return lipgloss.NewStyle().
+		Border(lipgloss.RoundedBorder()).
+		BorderForeground(ilovetui.S.Subtle).
+		Padding(1, 2)
+}
+
+func (m Model) View() tea.View {
+	statusBar := m.renderStatusBar()
+	statusH := strings.Count(statusBar, "\n") + 1
+
+	frameW := windowStyle().GetHorizontalFrameSize()
+	frameH := windowStyle().GetVerticalFrameSize()
+	innerW := m.width - frameW
+
+	tabBar := m.renderTabBar(innerW)
+	tabBarH := lipgloss.Height(tabBar)
+
+	innerH := m.height - tabBarH - frameH - statusH
+
+	var body string
+	switch {
+	case !m.checked:
+		body = ilovetui.S.Faint.Render("Checking wpctl…")
+	case m.checkErr != nil:
+		body = m.renderUnavailable()
+	default:
+		body = m.renderActiveTab(innerW, innerH)
+	}
+
+	box := lipgloss.NewStyle().Width(innerW).Height(innerH).Render(body)
+	content := windowStyle().Render(lipgloss.JoinVertical(lipgloss.Left, tabBar, box))
+
+	return tea.NewView(lipgloss.JoinVertical(lipgloss.Left, content, statusBar))
+}
+
+func (m Model) renderStatusBar() string {
+	km := audioKeyMap{m: m, width: m.width}
+	return lipgloss.NewStyle().Padding(0, 1).Render(m.help.View(km))
+}
+
+func (m Model) renderActiveTab(width, height int) string {
+	switch m.active {
+	case tabOutput:
+		return m.renderOutput(width, height)
+	case tabInput:
+		return m.renderInput(width, height)
+	case tabApps:
+		return m.renderApps(width, height)
+	default:
+		return ""
+	}
+}
+
+func (m Model) renderUnavailable() string {
+	title := lipgloss.NewStyle().Bold(true).Foreground(ilovetui.S.Error).Render("Audio page unavailable")
+
+	var hint string
+	switch {
+	case errors.Is(m.checkErr, audio.ErrNotFound):
+		hint = "wpctl was not found in PATH. Install PipeWire/WirePlumber to use this page."
+	default:
+		hint = m.checkErr.Error()
+	}
+
+	return lipgloss.JoinVertical(lipgloss.Left,
+		title,
+		"",
+		subtleStyle().Render(hint),
+		"",
+		mutedStyle().Render("Press r to try again once fixed."),
+	)
+}

internal/ui/bluetooth/commands.go

@@ -0,0 +1,77 @@
+package bluetooth
+
+import (
+	"time"
+
+	tea "charm.land/bubbletea/v2"
+	"github.com/anotherhadi/settuings/internal/bluetooth"
+)
+
+const (
+	tickInterval = 5 * time.Second
+	scanSeconds  = 5
+)
+
+func tickCmd() tea.Cmd {
+	return tea.Tick(tickInterval, func(time.Time) tea.Msg { return tickMsg{} })
+}
+
+func checkCmd() tea.Cmd {
+	return func() tea.Msg { return checkMsg{err: bluetooth.CheckAvailable()} }
+}
+
+func fetchControllerCmd() tea.Cmd {
+	return func() tea.Msg {
+		info, err := bluetooth.ShowController()
+		return controllerMsg{info: info, err: err}
+	}
+}
+
+func fetchDevicesCmd() tea.Cmd {
+	return func() tea.Msg {
+		devices, err := bluetooth.ListDevices()
+		return deviceListMsg{devices: devices, err: err}
+	}
+}
+
+func togglePowerCmd(on bool) tea.Cmd {
+	return func() tea.Msg { return powerActionMsg{err: bluetooth.SetPower(on)} }
+}
+
+func scanCmd() tea.Cmd {
+	return func() tea.Msg { return scanDoneMsg{err: bluetooth.Scan(scanSeconds)} }
+}
+
+func connectCmd(address string) tea.Cmd {
+	return func() tea.Msg { return deviceActionMsg{err: bluetooth.Connect(address)} }
+}
+
+func disconnectCmd(address string) tea.Cmd {
+	return func() tea.Msg { return deviceActionMsg{err: bluetooth.Disconnect(address)} }
+}
+
+// pairCmd pairs with a device and, on success, immediately connects it —
+// most devices don't auto-connect right after pairing.
+func pairCmd(address string) tea.Cmd {
+	return func() tea.Msg {
+		if err := bluetooth.Pair(address); err != nil {
+			return deviceActionMsg{err: err}
+		}
+		return deviceActionMsg{err: bluetooth.Connect(address)}
+	}
+}
+
+func trustCmd(address string, trust bool) tea.Cmd {
+	return func() tea.Msg { return deviceActionMsg{err: bluetooth.SetTrusted(address, trust)} }
+}
+
+func removeCmd(address string) tea.Cmd {
+	return func() tea.Msg { return deviceActionMsg{err: bluetooth.Remove(address)} }
+}
+
+func fetchDetailCmd(address string) tea.Cmd {
+	return func() tea.Msg {
+		detail, err := bluetooth.Info(address)
+		return detailMsg{detail: detail, err: err}
+	}
+}

internal/ui/bluetooth/detail.go

@@ -0,0 +1,206 @@
+package bluetooth
+
+import (
+	"fmt"
+	"strings"
+
+	"charm.land/bubbles/v2/key"
+	"charm.land/bubbles/v2/viewport"
+	tea "charm.land/bubbletea/v2"
+	"charm.land/lipgloss/v2"
+	ilovetui "github.com/anotherhadi/ilovetui"
+	"github.com/anotherhadi/settuings/internal/bluetooth"
+	"github.com/anotherhadi/settuings/internal/keys"
+	"github.com/anotherhadi/settuings/internal/util"
+)
+
+// deviceDetailState is the "device info" screen for whichever device (paired
+// or not) the user asked about. It overlays the main list. Content can
+// exceed a short terminal, so it's shown in a viewport.
+type deviceDetailState struct {
+	open    bool
+	address string
+	title   string
+
+	loading bool
+	err     error
+	data    bluetooth.DeviceDetail
+
+	pending  bool
+	feedback string
+
+	viewport viewport.Model
+}
+
+func (m *Model) openDetail(address, title string) tea.Cmd {
+	w, h := m.contentBudget()
+	vp := viewport.New()
+	vp.SetWidth(w)
+	vp.SetHeight(h)
+
+	m.detail = deviceDetailState{
+		open:     true,
+		address:  address,
+		title:    title,
+		loading:  true,
+		viewport: vp,
+	}
+	m.refreshDetailContent()
+	return fetchDetailCmd(address)
+}
+
+// contentBudget returns the exact space available inside the bordered page
+// box, below the tab bar and above the status bar. View() renders the box
+// at this same size, so the detail viewport fills it exactly instead of
+// leaving it short. Since the status bar's height depends on live state
+// (e.g. whether help is expanded), callers must call resizeDetail whenever
+// that state changes.
+func (m Model) contentBudget() (w, h int) {
+	frameW := windowStyle().GetHorizontalFrameSize()
+	frameH := windowStyle().GetVerticalFrameSize()
+	w = m.width - frameW
+
+	statusH := strings.Count(m.renderStatusBar(), "\n") + 1
+	tabBarH := lipgloss.Height(renderTabBar(w))
+
+	h = m.height - tabBarH - frameH - statusH
+	if h < 1 {
+		h = 1
+	}
+	return w, h
+}
+
+func (m *Model) resizeDetail() {
+	if !m.detail.open {
+		return
+	}
+	w, h := m.contentBudget()
+	m.detail.viewport.SetWidth(w)
+	m.detail.viewport.SetHeight(h)
+	m.refreshDetailContent()
+}
+
+func (m *Model) handleDetail(msg detailMsg) {
+	if !m.detail.open {
+		return
+	}
+	m.detail.loading = false
+	m.detail.data = msg.detail
+	m.detail.err = msg.err
+	m.refreshDetailContent()
+}
+
+// closeDetailIfPending closes the info screen once the connect/disconnect
+// it triggered has completed, but only if it's still the one waiting.
+func (m *Model) closeDetailIfPending() {
+	if m.detail.open && m.detail.pending {
+		m.detail = deviceDetailState{}
+	}
+}
+
+func (m *Model) updateDetail(msg tea.Msg) tea.Cmd {
+	if wheel, ok := msg.(tea.MouseWheelMsg); ok {
+		util.HandleMouseWheel(wheel, &m.detail.viewport)
+		return nil
+	}
+	keyMsg, ok := msg.(tea.KeyPressMsg)
+	if !ok {
+		return nil
+	}
+	g := keys.Keys.Global
+	b := keys.Keys.Bluetooth
+
+	switch {
+	case key.Matches(keyMsg, g.Escape), key.Matches(keyMsg, g.CycleFocus):
+		m.detail = deviceDetailState{}
+	case key.Matches(keyMsg, g.Help):
+		m.help.ShowAll = !m.help.ShowAll
+		m.resizeDetail()
+	case key.Matches(keyMsg, b.Select):
+		m.detail.pending = true
+		m.refreshDetailContent()
+		switch {
+		case m.detail.data.Connected:
+			return disconnectCmd(m.detail.address)
+		case m.detail.data.Paired:
+			return connectCmd(m.detail.address)
+		default:
+			return pairCmd(m.detail.address)
+		}
+	case key.Matches(keyMsg, b.ToggleTrust):
+		m.detail.pending = true
+		m.refreshDetailContent()
+		return trustCmd(m.detail.address, !m.detail.data.Trusted)
+	case key.Matches(keyMsg, g.Up):
+		util.ScrollLines(&m.detail.viewport, -1)
+	case key.Matches(keyMsg, g.Down):
+		util.ScrollLines(&m.detail.viewport, 1)
+	case key.Matches(keyMsg, g.ScrollUp):
+		util.ScrollViewport(&m.detail.viewport, -1)
+	case key.Matches(keyMsg, g.ScrollDown):
+		util.ScrollViewport(&m.detail.viewport, 1)
+	}
+	return nil
+}
+
+func (m Model) renderDetail() string {
+	return m.detail.viewport.View()
+}
+
+func (m *Model) refreshDetailContent() {
+	m.detail.viewport.SetContent(m.detailContent())
+	util.RefreshScrollbar(&m.detail.viewport)
+}
+
+func (m Model) detailContent() string {
+	d := m.detail
+	if d.loading {
+		return ilovetui.S.Faint.Render("Loading device info…")
+	}
+
+	title := lipgloss.NewStyle().Bold(true).Render(d.title)
+	if d.pending {
+		title += mutedStyle().Render("  working…")
+	}
+	rows := []string{title, subtleStyle().Render("Address:      ") + d.address}
+
+	if d.err != nil {
+		rows = append(rows, "", errorStyle().Render(d.err.Error()))
+		return lipgloss.JoinVertical(lipgloss.Left, rows...)
+	}
+
+	rows = append(rows,
+		subtleStyle().Render("Paired:       ")+yesNo(d.data.Paired),
+		subtleStyle().Render("Trusted:      ")+yesNo(d.data.Trusted),
+		subtleStyle().Render("Connected:    ")+yesNo(d.data.Connected),
+		subtleStyle().Render("Blocked:      ")+yesNo(d.data.Blocked),
+	)
+	if d.data.Icon != "" {
+		rows = append(rows, subtleStyle().Render("Type:         ")+d.data.Icon)
+	}
+	if d.data.Battery >= 0 {
+		rows = append(rows, subtleStyle().Render("Battery:      ")+fmt.Sprintf("%d%%", d.data.Battery))
+	}
+	if d.data.Modalias != "" {
+		rows = append(rows, subtleStyle().Render("Modalias:     ")+d.data.Modalias)
+	}
+	if len(d.data.UUIDs) > 0 {
+		rows = append(rows, "", subtleStyle().Render("Services:"))
+		for _, u := range d.data.UUIDs {
+			rows = append(rows, "  "+u)
+		}
+	}
+
+	if d.feedback != "" {
+		rows = append(rows, "", errorStyle().Render(d.feedback))
+	}
+
+	return lipgloss.JoinVertical(lipgloss.Left, rows...)
+}
+
+func yesNo(b bool) string {
+	if b {
+		return successStyle().Render("yes")
+	}
+	return subtleStyle().Render("no")
+}

internal/ui/bluetooth/keymap.go

@@ -0,0 +1,44 @@
+package bluetooth
+
+import (
+	"charm.land/bubbles/v2/key"
+	"github.com/anotherhadi/settuings/internal/keys"
+)
+
+// bluetoothKeyMap renders the bottom help bar, adapting to whether the
+// confirm-forget prompt or the device info screen is open.
+type bluetoothKeyMap struct {
+	m     Model
+	width int
+}
+
+func (k bluetoothKeyMap) ShortHelp() []key.Binding {
+	g := keys.Keys.Global
+	b := keys.Keys.Bluetooth
+
+	switch {
+	case k.m.list.confirmRemove:
+		return []key.Binding{b.Forget, g.Escape}
+	case k.m.detail.open:
+		return []key.Binding{g.Up, g.Down, b.Select, b.ToggleTrust, g.Escape, g.Help}
+	default:
+		return []key.Binding{g.Up, g.Down, b.Select, b.Refresh, b.Info, g.Help}
+	}
+}
+
+func (k bluetoothKeyMap) FullHelp() [][]key.Binding {
+	g := keys.Keys.Global
+	b := keys.Keys.Bluetooth
+
+	var bindings []key.Binding
+	switch {
+	case k.m.list.confirmRemove:
+		bindings = []key.Binding{b.Forget, g.Escape}
+	case k.m.detail.open:
+		bindings = []key.Binding{g.Up, g.Down, g.ScrollUp, g.ScrollDown, b.Select, b.ToggleTrust, g.Escape}
+	default:
+		bindings = []key.Binding{g.Up, g.Down, b.Select, b.Refresh, b.Info, b.ToggleTrust, b.Forget, b.TogglePower}
+	}
+	bindings = append(bindings, g.CommonBindings()...)
+	return keys.ChunkByWidth(bindings, k.width)
+}

internal/ui/bluetooth/list.go

@@ -0,0 +1,301 @@
+package bluetooth
+
+import (
+	"fmt"
+	"sort"
+	"strings"
+
+	"charm.land/bubbles/v2/key"
+	tea "charm.land/bubbletea/v2"
+	"charm.land/lipgloss/v2"
+	ilovetui "github.com/anotherhadi/ilovetui"
+	"github.com/anotherhadi/settuings/internal/bluetooth"
+	"github.com/anotherhadi/settuings/internal/icons"
+	"github.com/anotherhadi/settuings/internal/keys"
+)
+
+// deviceListState is the main screen: paired devices (fixed profiles)
+// followed by other devices seen during a scan but not yet paired. Both
+// live in one cursor-navigable, height-budgeted, paginated list.
+type deviceListState struct {
+	loading  bool
+	err      error
+	paired   []bluetooth.Device
+	others   []bluetooth.Device
+	cursor   int
+	pending  bool
+	scanning bool
+	feedback string
+
+	confirmRemove bool
+}
+
+func newDeviceListState() deviceListState {
+	return deviceListState{loading: true}
+}
+
+func (s deviceListState) total() int { return len(s.paired) + len(s.others) }
+
+func (s deviceListState) selected() *bluetooth.Device {
+	if s.cursor < 0 || s.cursor >= s.total() {
+		return nil
+	}
+	if s.cursor < len(s.paired) {
+		return &s.paired[s.cursor]
+	}
+	return &s.others[s.cursor-len(s.paired)]
+}
+
+func (m *Model) handleDeviceList(msg deviceListMsg) {
+	m.list.loading = false
+	m.list.err = msg.err
+	if msg.err != nil {
+		return
+	}
+
+	paired := make([]bluetooth.Device, 0, len(msg.devices))
+	others := make([]bluetooth.Device, 0, len(msg.devices))
+	for _, d := range msg.devices {
+		if d.Paired {
+			paired = append(paired, d)
+		} else {
+			others = append(others, d)
+		}
+	}
+	sort.Slice(paired, func(i, j int) bool {
+		if paired[i].Connected != paired[j].Connected {
+			return paired[i].Connected
+		}
+		return strings.ToLower(paired[i].Name) < strings.ToLower(paired[j].Name)
+	})
+	sort.Slice(others, func(i, j int) bool {
+		return strings.ToLower(others[i].Name) < strings.ToLower(others[j].Name)
+	})
+	m.list.paired = paired
+	m.list.others = others
+	if m.list.cursor >= m.list.total() {
+		m.list.cursor = max(0, m.list.total()-1)
+	}
+}
+
+func (m *Model) handleDeviceAction(msg deviceActionMsg) tea.Cmd {
+	m.list.pending = false
+	if msg.err != nil {
+		m.list.feedback = msg.err.Error()
+		m.detail.pending = false
+		m.detail.feedback = msg.err.Error()
+		m.refreshDetailContent()
+		return nil
+	}
+	m.list.feedback = ""
+	m.closeDetailIfPending()
+	return fetchDevicesCmd()
+}
+
+func (m *Model) handlePowerAction(msg powerActionMsg) tea.Cmd {
+	m.list.pending = false
+	if msg.err != nil {
+		m.list.feedback = msg.err.Error()
+		return nil
+	}
+	m.list.feedback = ""
+	return tea.Batch(fetchControllerCmd(), fetchDevicesCmd())
+}
+
+func (m *Model) handleScanDone(msg scanDoneMsg) tea.Cmd {
+	m.list.scanning = false
+	if msg.err != nil {
+		m.list.feedback = msg.err.Error()
+		return nil
+	}
+	m.list.feedback = ""
+	return fetchDevicesCmd()
+}
+
+func (m *Model) updateList(msg tea.Msg) tea.Cmd {
+	keyMsg, ok := msg.(tea.KeyPressMsg)
+	if !ok {
+		return nil
+	}
+
+	if m.list.confirmRemove {
+		return m.updateConfirmRemove(keyMsg)
+	}
+
+	g := keys.Keys.Global
+	b := keys.Keys.Bluetooth
+
+	switch {
+	case key.Matches(keyMsg, g.Up):
+		if m.list.cursor > 0 {
+			m.list.cursor--
+		}
+	case key.Matches(keyMsg, g.Down):
+		if m.list.cursor < m.list.total()-1 {
+			m.list.cursor++
+		}
+	case key.Matches(keyMsg, b.Refresh):
+		m.list.pending = true
+		m.list.scanning = true
+		return scanCmd()
+	case key.Matches(keyMsg, b.Select):
+		return m.selectDevice()
+	case key.Matches(keyMsg, b.Info):
+		return m.openInfo()
+	case key.Matches(keyMsg, b.ToggleTrust):
+		return m.toggleTrust()
+	case key.Matches(keyMsg, b.Forget):
+		if m.list.selected() != nil {
+			m.list.confirmRemove = true
+		}
+	case key.Matches(keyMsg, b.TogglePower):
+		m.list.pending = true
+		return togglePowerCmd(!m.controller.Powered)
+	}
+	return nil
+}
+
+func (m *Model) updateConfirmRemove(keyMsg tea.KeyPressMsg) tea.Cmd {
+	switch keyMsg.String() {
+	case "y", "enter":
+		sel := m.list.selected()
+		m.list.confirmRemove = false
+		if sel == nil {
+			return nil
+		}
+		m.list.pending = true
+		return removeCmd(sel.Address)
+	default:
+		m.list.confirmRemove = false
+	}
+	return nil
+}
+
+func (m *Model) selectDevice() tea.Cmd {
+	sel := m.list.selected()
+	if sel == nil {
+		return nil
+	}
+	m.list.pending = true
+	if sel.Paired {
+		if sel.Connected {
+			return disconnectCmd(sel.Address)
+		}
+		return connectCmd(sel.Address)
+	}
+	return pairCmd(sel.Address)
+}
+
+func (m *Model) toggleTrust() tea.Cmd {
+	sel := m.list.selected()
+	if sel == nil {
+		return nil
+	}
+	m.list.pending = true
+	return trustCmd(sel.Address, !sel.Trusted)
+}
+
+func (m *Model) openInfo() tea.Cmd {
+	sel := m.list.selected()
+	if sel == nil {
+		return nil
+	}
+	return m.openDetail(sel.Address, sel.Name)
+}
+
+func (m Model) renderList(width, height int) string {
+	if m.list.loading {
+		return ilovetui.S.Faint.Render("Loading Bluetooth devices…")
+	}
+	if m.list.err != nil {
+		return errorStyle().Render(m.list.err.Error())
+	}
+	if m.list.total() == 0 {
+		return ilovetui.S.Faint.Render("No devices found. Press r to scan for nearby devices.")
+	}
+
+	// Reserve a line for each section header that could appear, so the
+	// paginated device rows never overflow the available height even on
+	// the one page where a section boundary falls.
+	headerReserve := 0
+	if len(m.list.paired) > 0 {
+		headerReserve++
+	}
+	if len(m.list.others) > 0 {
+		headerReserve++
+	}
+
+	available := height - headerReserve - 1 // trailing line for paginator/feedback
+	if available < 1 {
+		available = 1
+	}
+	p, start, end := paginate(m.list.cursor, m.list.total(), available)
+
+	var lines []string
+	for i := start; i < end; i++ {
+		if i == 0 && len(m.list.paired) > 0 {
+			lines = append(lines, sectionHeader("PAIRED DEVICES"))
+		}
+		if i == len(m.list.paired) && len(m.list.others) > 0 {
+			lines = append(lines, sectionHeader("OTHER DEVICES"))
+		}
+		if i < len(m.list.paired) {
+			lines = append(lines, m.renderDeviceRow(m.list.paired[i], i == m.list.cursor, width))
+		} else {
+			lines = append(lines, m.renderDeviceRow(m.list.others[i-len(m.list.paired)], i == m.list.cursor, width))
+		}
+	}
+	list := strings.Join(lines, "\n")
+
+	footer := renderPaginatorDots(p)
+	switch {
+	case m.list.confirmRemove:
+		name := ""
+		if sel := m.list.selected(); sel != nil {
+			name = sel.Name
+		}
+		footer = errorStyle().Render(fmt.Sprintf("Forget %q? press y to confirm, any other key to cancel", name))
+	case m.list.feedback != "":
+		footer = errorStyle().Render(m.list.feedback)
+	}
+
+	return lipgloss.JoinVertical(lipgloss.Left, list, footer)
+}
+
+func sectionHeader(text string) string {
+	return lipgloss.NewStyle().Bold(true).Foreground(ilovetui.S.Subtle).Render(text)
+}
+
+func (m Model) renderDeviceRow(d bluetooth.Device, selected bool, width int) string {
+	textStyle := lipgloss.NewStyle().Foreground(ilovetui.S.Text)
+	if selected {
+		textStyle = textStyle.Bold(true).Foreground(ilovetui.S.Primary)
+	}
+	cursor := "  "
+	if selected {
+		cursor = "> "
+	}
+	check := " "
+	if d.Connected {
+		check = successStyle().Render(icons.I.Check)
+	}
+
+	var tags []string
+	if d.Trusted {
+		tags = append(tags, "trusted")
+	}
+	if d.Battery >= 0 {
+		tags = append(tags, fmt.Sprintf("%d%%", d.Battery))
+	}
+	tag := strings.Join(tags, " · ")
+
+	row := fmt.Sprintf("%s%s%s", cursor, check, textStyle.Render(d.Name))
+	if tag == "" {
+		return row
+	}
+	pad := width - lipgloss.Width(row) - lipgloss.Width(tag)
+	if pad < 1 {
+		pad = 1
+	}
+	return row + strings.Repeat(" ", pad) + subtleStyle().Render(tag)
+}

internal/ui/bluetooth/messages.go

@@ -0,0 +1,31 @@
+package bluetooth
+
+import "github.com/anotherhadi/settuings/internal/bluetooth"
+
+// checkMsg carries the result of bluetooth.CheckAvailable.
+type checkMsg struct{ err error }
+
+// tickMsg triggers a periodic refresh of the controller + device list while
+// this page is active.
+type tickMsg struct{}
+
+type controllerMsg struct {
+	info bluetooth.ControllerInfo
+	err  error
+}
+
+type deviceListMsg struct {
+	devices []bluetooth.Device
+	err     error
+}
+
+type deviceActionMsg struct{ err error }
+
+type powerActionMsg struct{ err error }
+
+type scanDoneMsg struct{ err error }
+
+type detailMsg struct {
+	detail bluetooth.DeviceDetail
+	err    error
+}

internal/ui/bluetooth/model.go

@@ -0,0 +1,54 @@
+// Package bluetooth provides the "Bluetooth" TUI page: a thin wrapper
+// around bluetoothctl covering controller power and device
+// pairing/connection, in the same spirit as the network page's Wi-Fi tab.
+package bluetooth
+
+import (
+	"charm.land/bubbles/v2/help"
+	tea "charm.land/bubbletea/v2"
+	ilovetui "github.com/anotherhadi/ilovetui"
+	"github.com/anotherhadi/settuings/internal/bluetooth"
+)
+
+type Model struct {
+	width  int
+	height int
+	help   help.Model
+
+	checkErr error // reason bluetoothctl is unusable; nil once confirmed OK
+	checked  bool
+
+	controller bluetooth.ControllerInfo
+
+	list   deviceListState
+	detail deviceDetailState
+}
+
+func New() Model {
+	return Model{
+		help: ilovetui.NewHelp(),
+		list: newDeviceListState(),
+	}
+}
+
+func (m Model) Init() tea.Cmd {
+	return nil
+}
+
+// Activate is called every time the user navigates onto this page. It
+// re-checks bluetoothctl availability, fetches controller + device state,
+// and starts the periodic auto-refresh loop.
+func (m *Model) Activate() tea.Cmd {
+	return tea.Batch(checkCmd(), fetchControllerCmd(), fetchDevicesCmd(), tickCmd())
+}
+
+func (m Model) IsEditing() bool {
+	return m.list.confirmRemove
+}
+
+func (m *Model) SetSize(w, h int) {
+	m.width = w
+	m.height = h
+	m.help.SetWidth(w - 2)
+	m.resizeDetail()
+}

internal/ui/bluetooth/pagination.go

@@ -0,0 +1,44 @@
+package bluetooth
+
+import (
+	"charm.land/bubbles/v2/paginator"
+	"charm.land/lipgloss/v2"
+	ilovetui "github.com/anotherhadi/ilovetui"
+)
+
+func newPaginator() paginator.Model {
+	p := paginator.New()
+	p.Type = paginator.Dots
+	p.ActiveDot = lipgloss.NewStyle().Foreground(ilovetui.S.Primary).Render("•")
+	p.InactiveDot = lipgloss.NewStyle().Foreground(ilovetui.S.Subtle).Render("•")
+	return p
+}
+
+// paginate slices a list of length total into pages of availableRows items,
+// deriving the current page from cursor (the globally-indexed selection)
+// rather than tracking page state separately. It returns the configured
+// paginator and the [start, end) bounds of the visible slice.
+func paginate(cursor, total, availableRows int) (p paginator.Model, start, end int) {
+	p = newPaginator()
+	perPage := availableRows
+	if perPage < 1 {
+		perPage = 1
+	}
+	p.PerPage = perPage
+	p.SetTotalPages(total)
+	if p.TotalPages > 0 {
+		p.Page = cursor / perPage
+		if p.Page >= p.TotalPages {
+			p.Page = p.TotalPages - 1
+		}
+	}
+	start, end = p.GetSliceBounds(total)
+	return p, start, end
+}
+
+func renderPaginatorDots(p paginator.Model) string {
+	if p.TotalPages <= 1 {
+		return ""
+	}
+	return mutedStyle().Render(p.View())
+}

internal/ui/bluetooth/style.go

@@ -0,0 +1,22 @@
+package bluetooth
+
+import (
+	"charm.land/lipgloss/v2"
+	ilovetui "github.com/anotherhadi/ilovetui"
+)
+
+func errorStyle() lipgloss.Style {
+	return lipgloss.NewStyle().Foreground(ilovetui.S.Error)
+}
+
+func successStyle() lipgloss.Style {
+	return lipgloss.NewStyle().Foreground(ilovetui.S.Success)
+}
+
+func subtleStyle() lipgloss.Style {
+	return lipgloss.NewStyle().Foreground(ilovetui.S.Subtle)
+}
+
+func mutedStyle() lipgloss.Style {
+	return lipgloss.NewStyle().Foreground(ilovetui.S.Muted)
+}

internal/ui/bluetooth/tabbar.go

@@ -0,0 +1,30 @@
+package bluetooth
+
+import (
+	"strings"
+
+	"charm.land/lipgloss/v2"
+	ilovetui "github.com/anotherhadi/ilovetui"
+	"github.com/anotherhadi/settuings/internal/icons"
+)
+
+// renderTabBar draws a header matching the network page's tab bar, but with
+// a single always-active entry: this page has no tabs of its own, just a
+// visual label for consistency.
+func renderTabBar(width int) string {
+	style := lipgloss.NewStyle().Bold(true).Foreground(ilovetui.S.Primary).Padding(0, 2).
+		Border(lipgloss.NormalBorder(), false, false, true, false).
+		BorderForeground(ilovetui.S.Primary)
+
+	label := style.Render(icons.I.Bluetooth + "Bluetooth")
+
+	filler := width - lipgloss.Width(label)
+	if filler > 0 {
+		label = lipgloss.JoinHorizontal(lipgloss.Bottom, label,
+			lipgloss.NewStyle().
+				Border(lipgloss.NormalBorder(), false, false, true, false).
+				BorderForeground(ilovetui.S.Primary).
+				Render(strings.Repeat(" ", filler)))
+	}
+	return label
+}

internal/ui/bluetooth/update.go

@@ -0,0 +1,70 @@
+package bluetooth
+
+import (
+	"charm.land/bubbles/v2/key"
+	tea "charm.land/bubbletea/v2"
+	"github.com/anotherhadi/settuings/internal/keys"
+)
+
+func (m Model) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
+	switch msg := msg.(type) {
+	case checkMsg:
+		wasUnavailable := m.checkErr != nil
+		m.checked = true
+		m.checkErr = msg.err
+		if msg.err == nil && wasUnavailable {
+			// recovered: resume fetching + the auto-refresh loop
+			return m, tea.Batch(fetchControllerCmd(), fetchDevicesCmd(), tickCmd())
+		}
+		return m, nil
+
+	case tickMsg:
+		if m.checkErr != nil {
+			return m, nil
+		}
+		return m, tea.Batch(fetchControllerCmd(), fetchDevicesCmd(), tickCmd())
+
+	case controllerMsg:
+		m.controller = msg.info
+		return m, nil
+
+	case deviceListMsg:
+		m.handleDeviceList(msg)
+		return m, nil
+	case deviceActionMsg:
+		return m, m.handleDeviceAction(msg)
+	case powerActionMsg:
+		return m, m.handlePowerAction(msg)
+	case scanDoneMsg:
+		return m, m.handleScanDone(msg)
+	case detailMsg:
+		m.handleDetail(msg)
+		return m, nil
+
+	case tea.MouseWheelMsg:
+		if m.detail.open {
+			return m, m.updateDetail(msg)
+		}
+		return m, nil
+
+	case tea.KeyPressMsg:
+		if m.checkErr != nil {
+			if key.Matches(msg, keys.Keys.Bluetooth.Refresh) {
+				return m, checkCmd()
+			}
+			return m, nil
+		}
+
+		if m.detail.open {
+			return m, m.updateDetail(msg)
+		}
+
+		if !m.IsEditing() && key.Matches(msg, keys.Keys.Global.Help) {
+			m.help.ShowAll = !m.help.ShowAll
+			return m, nil
+		}
+
+		return m, m.updateList(msg)
+	}
+	return m, nil
+}

internal/ui/bluetooth/view.go

@@ -0,0 +1,93 @@
+package bluetooth
+
+import (
+	"errors"
+
+	tea "charm.land/bubbletea/v2"
+	"charm.land/lipgloss/v2"
+	ilovetui "github.com/anotherhadi/ilovetui"
+	"github.com/anotherhadi/settuings/internal/bluetooth"
+)
+
+func windowStyle() lipgloss.Style {
+	return lipgloss.NewStyle().
+		Border(lipgloss.RoundedBorder()).
+		BorderForeground(ilovetui.S.Subtle).
+		Padding(1, 2)
+}
+
+func (m Model) View() tea.View {
+	statusBar := m.renderStatusBar()
+	innerW, innerH := m.contentBudget()
+	tabBar := renderTabBar(innerW)
+
+	var body string
+	switch {
+	case !m.checked:
+		body = ilovetui.S.Faint.Render("Checking bluetoothctl…")
+	case m.checkErr != nil:
+		body = m.renderUnavailable()
+	case m.detail.open:
+		body = m.renderDetail()
+	default:
+		body = m.renderMain(innerW, innerH)
+	}
+
+	box := lipgloss.NewStyle().Width(innerW).Height(innerH).Render(body)
+	content := windowStyle().Render(lipgloss.JoinVertical(lipgloss.Left, tabBar, box))
+
+	return tea.NewView(lipgloss.JoinVertical(lipgloss.Left, content, statusBar))
+}
+
+func (m Model) renderStatusBar() string {
+	km := bluetoothKeyMap{m: m, width: m.width}
+	return lipgloss.NewStyle().Padding(0, 1).Render(m.help.View(km))
+}
+
+func (m Model) renderMain(width, height int) string {
+	header := m.renderPowerStatus()
+	headerH := lipgloss.Height(header) + 1 // blank line after
+	listH := height - headerH
+	if listH < 1 {
+		listH = 1
+	}
+	return lipgloss.JoinVertical(lipgloss.Left, header, "", m.renderList(width, listH))
+}
+
+func (m Model) renderPowerStatus() string {
+	label := "Bluetooth: "
+	status := errorStyle().Bold(true).Render("Off")
+	if m.controller.Powered {
+		status = successStyle().Bold(true).Render("On")
+	}
+	line := label + status
+	switch {
+	case m.list.scanning:
+		line += mutedStyle().Render("  scanning…")
+	case m.list.pending:
+		line += mutedStyle().Render("  working…")
+	}
+	return line
+}
+
+func (m Model) renderUnavailable() string {
+	title := lipgloss.NewStyle().Bold(true).Foreground(ilovetui.S.Error).Render("Bluetooth page unavailable")
+
+	var hint string
+	switch {
+	case errors.Is(m.checkErr, bluetooth.ErrNotFound):
+		hint = "bluetoothctl was not found in PATH. Install BlueZ to use this page."
+	case errors.Is(m.checkErr, bluetooth.ErrNoController):
+		hint = "No Bluetooth controller was found. Try: sudo systemctl start bluetooth"
+	default:
+		hint = m.checkErr.Error()
+	}
+
+	return lipgloss.JoinVertical(lipgloss.Left,
+		title,
+		"",
+		subtleStyle().Render(hint),
+		"",
+		mutedStyle().Render("Press r to try again once fixed."),
+	)
+}

internal/ui/components/notifications/model.go

@@ -0,0 +1,154 @@
+package notifications
+
+import (
+	"image/color"
+	"strings"
+	"time"
+
+	tea "charm.land/bubbletea/v2"
+	"charm.land/lipgloss/v2"
+	ilovetui "github.com/anotherhadi/ilovetui"
+	"github.com/charmbracelet/x/ansi"
+)
+
+type Kind string
+
+const (
+	KindInfo    Kind = "info"
+	KindSuccess Kind = "success"
+	KindWarning Kind = "warning"
+	KindError   Kind = "error"
+)
+
+type NotificationMsg struct {
+	Title string
+	Body  string
+	Kind  Kind
+}
+
+type DismissMsg struct{ ID int }
+
+type notification struct {
+	id    int
+	title string
+	body  string
+	kind  Kind
+}
+
+type Model struct {
+	queue  []notification
+	nextID int
+	width  int
+	height int
+}
+
+func New() Model { return Model{} }
+
+func (m *Model) SetSize(w, h int) {
+	m.width = w
+	m.height = h
+}
+
+func (m Model) HasNotifications() bool {
+	return len(m.queue) > 0
+}
+
+func (m Model) Update(msg tea.Msg) (Model, tea.Cmd) {
+	switch msg := msg.(type) {
+	case NotificationMsg:
+		n := notification{id: m.nextID, title: msg.Title, body: msg.Body, kind: msg.Kind}
+		m.nextID++
+		m.queue = append(m.queue, n)
+		return m, tea.Tick(4*time.Second, func(time.Time) tea.Msg { return DismissMsg{ID: n.id} })
+	case DismissMsg:
+		for i, n := range m.queue {
+			if n.id == msg.ID {
+				m.queue = append(m.queue[:i], m.queue[i+1:]...)
+				break
+			}
+		}
+	}
+	return m, nil
+}
+
+func (m Model) View(background string) string {
+	if len(m.queue) == 0 {
+		return background
+	}
+
+	const popupW = 34
+
+	var popups []string
+	start := len(m.queue) - 3
+	if start < 0 {
+		start = 0
+	}
+	for i := start; i < len(m.queue); i++ {
+		n := m.queue[i]
+		var accent color.Color
+		switch n.kind {
+		case KindSuccess:
+			accent = ilovetui.S.Success
+		case KindWarning:
+			accent = ilovetui.S.Warning
+		case KindError:
+			accent = ilovetui.S.Error
+		default:
+			accent = ilovetui.S.Primary
+		}
+
+		titleStr := lipgloss.NewStyle().Foreground(accent).Bold(true).Render(n.title)
+		bodyStr := lipgloss.NewStyle().Foreground(ilovetui.S.Text).Width(popupW).Render(n.body)
+
+		inner := lipgloss.JoinVertical(lipgloss.Left, titleStr, bodyStr)
+		box := lipgloss.NewStyle().
+			Border(lipgloss.RoundedBorder()).
+			BorderForeground(accent).
+			Padding(0, 1).
+			Render(inner)
+		popups = append(popups, box)
+	}
+
+	popup := strings.Join(popups, "\n")
+	return overlayTopRight(background, popup, m.width, m.height)
+}
+
+func overlayTopRight(bg, popup string, w, h int) string {
+	bgLines := strings.Split(bg, "\n")
+
+	popupLines := strings.Split(popup, "\n")
+	popupH := len(popupLines)
+	popupW := 0
+	for _, l := range popupLines {
+		if vw := lipgloss.Width(l); vw > popupW {
+			popupW = vw
+		}
+	}
+
+	const marginTop = 1
+	const marginRight = 2
+	startY := marginTop
+	startX := w - popupW - marginRight
+	if startX < 0 {
+		startX = 0
+	}
+
+	result := make([]string, h)
+	for y := 0; y < h; y++ {
+		bgLine := ""
+		if y < len(bgLines) {
+			bgLine = bgLines[y]
+		}
+
+		popupY := y - startY
+		if popupY >= 0 && popupY < popupH {
+			prefix := ansi.Truncate(bgLine, startX, "")
+			suffix := ansi.TruncateLeft(bgLine, startX+popupW, "")
+			result[y] = prefix + popupLines[popupY] + suffix
+		} else {
+			result[y] = bgLine
+		}
+	}
+
+	return strings.Join(result, "\n")
+}

internal/ui/network/commands.go

@@ -0,0 +1,118 @@
+package network
+
+import (
+	"time"
+
+	tea "charm.land/bubbletea/v2"
+	"github.com/anotherhadi/settuings/internal/network"
+)
+
+const tickInterval = 5 * time.Second
+
+func tickCmd() tea.Cmd {
+	return tea.Tick(tickInterval, func(time.Time) tea.Msg { return tickMsg{} })
+}
+
+func checkCmd() tea.Cmd {
+	return func() tea.Msg { return checkMsg{err: network.CheckAvailable()} }
+}
+
+func fetchWifiCmd() tea.Cmd {
+	return func() tea.Msg {
+		radioOn, _ := network.RadioEnabled()
+		networks, err := network.ListWifi()
+		if err != nil {
+			return wifiListMsg{radioOn: radioOn, err: err}
+		}
+		var ip, device, connectionName string
+		if dev, err := network.WifiDevice(); err == nil {
+			device = dev.Name
+			if dev.Connected() {
+				ip, _ = network.DeviceIP4(dev.Name)
+				connectionName = dev.Connection
+			}
+		}
+		return wifiListMsg{networks: networks, ip: ip, device: device, connectionName: connectionName, radioOn: radioOn}
+	}
+}
+
+func toggleWifiRadioCmd(on bool) tea.Cmd {
+	return func() tea.Msg { return radioActionMsg{err: network.SetWifiRadio(on)} }
+}
+
+func rescanWifiCmd() tea.Cmd {
+	return func() tea.Msg { return wifiActionMsg{err: network.Rescan()} }
+}
+
+func connectWifiCmd(ssid, password string) tea.Cmd {
+	return func() tea.Msg { return wifiActionMsg{err: network.ConnectWifi(ssid, password)} }
+}
+
+func disconnectWifiCmd() tea.Cmd {
+	return func() tea.Msg {
+		dev, err := network.WifiDevice()
+		if err != nil {
+			return wifiActionMsg{err: err}
+		}
+		return wifiActionMsg{err: network.DisconnectWifi(dev.Name)}
+	}
+}
+
+func fetchEthernetCmd() tea.Cmd {
+	return func() tea.Msg {
+		devices, err := network.ListEthernet()
+		return ethernetListMsg{devices: devices, err: err}
+	}
+}
+
+func ethernetConnectCmd(device string) tea.Cmd {
+	return func() tea.Msg { return ethernetActionMsg{err: network.DeviceConnect(device)} }
+}
+
+func ethernetDownCmd(device string) tea.Cmd {
+	return func() tea.Msg { return ethernetActionMsg{err: network.EthernetDown(device)} }
+}
+
+func fetchVPNCmd() tea.Cmd {
+	return func() tea.Msg {
+		conns, err := network.ListVPN()
+		return vpnListMsg{conns: conns, err: err}
+	}
+}
+
+func vpnUpCmd(name string) tea.Cmd {
+	return func() tea.Msg { return vpnActionMsg{err: network.VPNUp(name)} }
+}
+
+func vpnDownCmd(name string) tea.Cmd {
+	return func() tea.Msg { return vpnActionMsg{err: network.VPNDown(name)} }
+}
+
+func fetchKnownCmd() tea.Cmd {
+	return func() tea.Msg {
+		networks, err := network.ListKnownWifi()
+		return knownListMsg{networks: networks, err: err}
+	}
+}
+
+func fetchSecretCmd(name string) tea.Cmd {
+	return func() tea.Msg {
+		secret, err := network.Secret(name)
+		return knownSecretMsg{name: name, secret: secret, err: err}
+	}
+}
+
+func toggleAutoConnectCmd(name string, enabled bool) tea.Cmd {
+	return func() tea.Msg { return knownActionMsg{err: network.SetAutoConnect(name, enabled)} }
+}
+
+func forgetCmd(name string) tea.Cmd {
+	return func() tea.Msg { return knownActionMsg{err: network.Forget(name)} }
+}
+
+func fetchDeviceDetailCmd(device string) tea.Cmd {
+	return func() tea.Msg {
+		detail, err := network.DeviceDetails(device)
+		return deviceDetailMsg{detail: detail, err: err}
+	}
+}

internal/ui/network/detail.go

@@ -0,0 +1,273 @@
+package network
+
+import (
+	"fmt"
+	"strings"
+
+	"charm.land/bubbles/v2/key"
+	"charm.land/bubbles/v2/viewport"
+	tea "charm.land/bubbletea/v2"
+	"charm.land/lipgloss/v2"
+	ilovetui "github.com/anotherhadi/ilovetui"
+	"github.com/anotherhadi/settuings/internal/keys"
+	"github.com/anotherhadi/settuings/internal/network"
+	"github.com/anotherhadi/settuings/internal/util"
+)
+
+// deviceDetailState is the "network info" screen: full addressing/hardware
+// details for whichever connected device (wifi or ethernet) the user asked
+// about, plus a way to disconnect it. It overlays whichever tab opened it.
+// Content can exceed a short terminal, so it's shown in a viewport.
+type deviceDetailState struct {
+	open           bool
+	kind           tab // tabWifi or tabEthernet: decides which disconnect action to run
+	device         string
+	title          string
+	security       string // wifi only
+	signal         int    // wifi only, <=0 means n/a
+	connectionName string // wifi only: profile name, for secret lookup
+
+	loading bool
+	err     error
+	data    network.DeviceDetail
+
+	secretLoading  bool
+	secretValue    string
+	secretRevealed bool
+	secretErr      error
+
+	pending  bool
+	feedback string
+
+	viewport viewport.Model
+}
+
+func (m *Model) openDeviceDetail(kind tab, device, title, security string, signal int) tea.Cmd {
+	w, h := m.contentBudget()
+	vp := viewport.New()
+	vp.SetWidth(w)
+	vp.SetHeight(h)
+
+	m.deviceDetail = deviceDetailState{
+		open:           true,
+		kind:           kind,
+		device:         device,
+		title:          title,
+		security:       security,
+		signal:         signal,
+		connectionName: m.wifi.connectionName,
+		loading:        true,
+		secretLoading:  kind == tabWifi,
+		viewport:       vp,
+	}
+	m.refreshDeviceDetailContent()
+
+	cmds := []tea.Cmd{fetchDeviceDetailCmd(device)}
+	if kind == tabWifi && m.wifi.connectionName != "" {
+		cmds = append(cmds, fetchSecretCmd(m.wifi.connectionName))
+	}
+	return tea.Batch(cmds...)
+}
+
+// contentBudget returns the exact space available inside the bordered tab
+// box, below the tab bar and above the status bar. View() renders the box
+// at this same size, so anything sized against contentBudget (e.g. a detail
+// viewport) fills the box exactly instead of leaving it short. Since the
+// status bar's height depends on live state (e.g. whether help is
+// expanded), callers must re-size whenever that state changes — see
+// resizeDeviceDetail/resizeKnownDetail.
+func (m Model) contentBudget() (w, h int) {
+	frameW := windowStyle().GetHorizontalFrameSize()
+	frameH := windowStyle().GetVerticalFrameSize()
+	w = m.width - frameW
+
+	statusH := strings.Count(m.renderStatusBar(), "\n") + 1
+	tabBarH := lipgloss.Height(m.renderTabBar(w))
+
+	h = m.height - tabBarH - frameH - statusH
+	if h < 1 {
+		h = 1
+	}
+	return w, h
+}
+
+// resizeDetails re-sizes every open detail viewport to match the current
+// content budget. Call it whenever that budget could have changed: on
+// window resize, or when the status bar's height changes (e.g. toggling
+// help).
+func (m *Model) resizeDetails() {
+	m.resizeDeviceDetail()
+	m.resizeKnownDetail()
+}
+
+func (m *Model) resizeDeviceDetail() {
+	if !m.deviceDetail.open {
+		return
+	}
+	w, h := m.contentBudget()
+	m.deviceDetail.viewport.SetWidth(w)
+	m.deviceDetail.viewport.SetHeight(h)
+	m.refreshDeviceDetailContent()
+}
+
+func (m *Model) handleDeviceDetail(msg deviceDetailMsg) {
+	if !m.deviceDetail.open {
+		return
+	}
+	m.deviceDetail.loading = false
+	m.deviceDetail.data = msg.detail
+	m.deviceDetail.err = msg.err
+	m.refreshDeviceDetailContent()
+}
+
+// handleDeviceDetailSecret feeds a knownSecretMsg to the info screen if it's
+// the one that asked for it. The known-networks tab checks the same message
+// for its own detail view; both can be true at once only in theory (they're
+// on different tabs), so this is safe to call unconditionally.
+func (m *Model) handleDeviceDetailSecret(msg knownSecretMsg) {
+	if !m.deviceDetail.open || m.deviceDetail.kind != tabWifi || m.deviceDetail.connectionName != msg.name {
+		return
+	}
+	m.deviceDetail.secretLoading = false
+	m.deviceDetail.secretValue = msg.secret
+	m.deviceDetail.secretErr = msg.err
+	m.refreshDeviceDetailContent()
+}
+
+// closeDeviceDetailIfPending closes the info screen once the disconnect it
+// triggered has completed, but only if it's still the one waiting on kind.
+func (m *Model) closeDeviceDetailIfPending(kind tab) {
+	if m.deviceDetail.open && m.deviceDetail.kind == kind && m.deviceDetail.pending {
+		m.deviceDetail = deviceDetailState{}
+	}
+}
+
+func (m *Model) updateDeviceDetail(msg tea.Msg) tea.Cmd {
+	if wheel, ok := msg.(tea.MouseWheelMsg); ok {
+		util.HandleMouseWheel(wheel, &m.deviceDetail.viewport)
+		return nil
+	}
+	keyMsg, ok := msg.(tea.KeyPressMsg)
+	if !ok {
+		return nil
+	}
+	g := keys.Keys.Global
+	n := keys.Keys.Network
+
+	switch {
+	case key.Matches(keyMsg, g.Escape), key.Matches(keyMsg, g.CycleFocus):
+		m.deviceDetail = deviceDetailState{}
+	case key.Matches(keyMsg, g.Help):
+		m.help.ShowAll = !m.help.ShowAll
+		m.resizeDetails()
+	case key.Matches(keyMsg, n.Disconnect):
+		m.deviceDetail.pending = true
+		m.refreshDeviceDetailContent()
+		switch m.deviceDetail.kind {
+		case tabWifi:
+			return disconnectWifiCmd()
+		case tabEthernet:
+			return ethernetDownCmd(m.deviceDetail.device)
+		}
+	case key.Matches(keyMsg, n.RevealSecret):
+		if m.deviceDetail.kind == tabWifi {
+			m.deviceDetail.secretRevealed = !m.deviceDetail.secretRevealed
+			m.refreshDeviceDetailContent()
+		}
+	case key.Matches(keyMsg, g.Up):
+		util.ScrollLines(&m.deviceDetail.viewport, -1)
+	case key.Matches(keyMsg, g.Down):
+		util.ScrollLines(&m.deviceDetail.viewport, 1)
+	case key.Matches(keyMsg, g.ScrollUp):
+		util.ScrollViewport(&m.deviceDetail.viewport, -1)
+	case key.Matches(keyMsg, g.ScrollDown):
+		util.ScrollViewport(&m.deviceDetail.viewport, 1)
+	}
+	return nil
+}
+
+func (m Model) renderDeviceDetail() string {
+	return m.deviceDetail.viewport.View()
+}
+
+func (m *Model) refreshDeviceDetailContent() {
+	m.deviceDetail.viewport.SetContent(m.deviceDetailContent())
+	util.RefreshScrollbar(&m.deviceDetail.viewport)
+}
+
+func (m Model) deviceDetailContent() string {
+	d := m.deviceDetail
+	if d.loading {
+		return ilovetui.S.Faint.Render("Loading network info…")
+	}
+
+	title := lipgloss.NewStyle().Bold(true).Render(d.title)
+	if d.pending {
+		title += mutedStyle().Render("  disconnecting…")
+	}
+	rows := []string{title}
+	if d.kind == tabWifi {
+		rows = append(rows, subtleStyle().Render("Security:     ")+securityLabel(d.security))
+		if d.signal > 0 {
+			rows = append(rows, subtleStyle().Render("Signal:       ")+fmt.Sprintf("%d%%", d.signal))
+		}
+		rows = append(rows, subtleStyle().Render("Password:     ")+m.renderDeviceSecret())
+	}
+	rows = append(rows, subtleStyle().Render("Interface:    ")+d.device)
+
+	if d.err != nil {
+		rows = append(rows, "", errorStyle().Render(d.err.Error()))
+		return lipgloss.JoinVertical(lipgloss.Left, rows...)
+	}
+
+	rows = append(rows,
+		subtleStyle().Render("IPv4 Address: ")+valueOrDash(d.data.IPv4),
+		subtleStyle().Render("Gateway:      ")+valueOrDash(d.data.Gateway4),
+		subtleStyle().Render("DNS:          ")+valueOrDash(strings.Join(d.data.DNS4, ", ")),
+		subtleStyle().Render("MAC Address:  ")+valueOrDash(d.data.HWAddr),
+		subtleStyle().Render("MTU:          ")+valueOrDash(d.data.MTU),
+	)
+
+	if len(d.data.IPv6) > 0 {
+		rows = append(rows, "", subtleStyle().Render("IPv6 Address: ")+d.data.IPv6[0])
+		for _, addr := range d.data.IPv6[1:] {
+			rows = append(rows, "              "+addr)
+		}
+	}
+	if d.data.Gateway6 != "" {
+		rows = append(rows, subtleStyle().Render("IPv6 Gateway: ")+d.data.Gateway6)
+	}
+	if len(d.data.DNS6) > 0 {
+		rows = append(rows, subtleStyle().Render("IPv6 DNS:     ")+strings.Join(d.data.DNS6, ", "))
+	}
+
+	if d.feedback != "" {
+		rows = append(rows, "", errorStyle().Render(d.feedback))
+	}
+
+	return lipgloss.JoinVertical(lipgloss.Left, rows...)
+}
+
+func (m Model) renderDeviceSecret() string {
+	d := m.deviceDetail
+	if d.secretLoading {
+		return mutedStyle().Render("loading…")
+	}
+	if d.secretErr != nil {
+		return errorStyle().Render(d.secretErr.Error())
+	}
+	if d.secretValue == "" {
+		return subtleStyle().Render("(none)")
+	}
+	if !d.secretRevealed {
+		return subtleStyle().Render(strings.Repeat("•", len(d.secretValue)))
+	}
+	return d.secretValue
+}
+
+func valueOrDash(s string) string {
+	if s == "" {
+		return "—"
+	}
+	return s
+}

internal/ui/network/ethernet.go

@@ -0,0 +1,165 @@
+package network
+
+import (
+	"fmt"
+	"strings"
+
+	"charm.land/bubbles/v2/key"
+	tea "charm.land/bubbletea/v2"
+	"charm.land/lipgloss/v2"
+	ilovetui "github.com/anotherhadi/ilovetui"
+	"github.com/anotherhadi/settuings/internal/icons"
+	"github.com/anotherhadi/settuings/internal/keys"
+	"github.com/anotherhadi/settuings/internal/network"
+)
+
+type ethernetState struct {
+	loading  bool
+	err      error
+	devices  []network.EthernetDevice
+	cursor   int
+	pending  bool
+	feedback string
+}
+
+func newEthernetState() ethernetState {
+	return ethernetState{loading: true}
+}
+
+func (m *Model) handleEthernetList(msg ethernetListMsg) {
+	m.ethernet.loading = false
+	m.ethernet.err = msg.err
+	if msg.err != nil {
+		return
+	}
+	m.ethernet.devices = msg.devices
+	if m.ethernet.cursor >= len(m.ethernet.devices) {
+		m.ethernet.cursor = max(0, len(m.ethernet.devices)-1)
+	}
+}
+
+func (m *Model) handleEthernetAction(msg ethernetActionMsg) tea.Cmd {
+	m.ethernet.pending = false
+	if msg.err != nil {
+		m.ethernet.feedback = msg.err.Error()
+		m.deviceDetail.pending = false
+		m.deviceDetail.feedback = msg.err.Error()
+		m.refreshDeviceDetailContent()
+		return nil
+	}
+	m.ethernet.feedback = ""
+	m.closeDeviceDetailIfPending(tabEthernet)
+	return fetchEthernetCmd()
+}
+
+func (m *Model) updateEthernet(msg tea.Msg) tea.Cmd {
+	keyMsg, ok := msg.(tea.KeyPressMsg)
+	if !ok {
+		return nil
+	}
+	g := keys.Keys.Global
+	n := keys.Keys.Network
+
+	switch {
+	case key.Matches(keyMsg, g.Up):
+		if m.ethernet.cursor > 0 {
+			m.ethernet.cursor--
+		}
+	case key.Matches(keyMsg, g.Down):
+		if m.ethernet.cursor < len(m.ethernet.devices)-1 {
+			m.ethernet.cursor++
+		}
+	case key.Matches(keyMsg, n.Refresh):
+		return fetchEthernetCmd()
+	case key.Matches(keyMsg, n.Select):
+		return m.selectEthernet()
+	case key.Matches(keyMsg, n.Info):
+		return m.infoEthernet()
+	}
+	return nil
+}
+
+func (m *Model) infoEthernet() tea.Cmd {
+	if m.ethernet.cursor < 0 || m.ethernet.cursor >= len(m.ethernet.devices) {
+		return nil
+	}
+	dev := m.ethernet.devices[m.ethernet.cursor]
+	if !dev.Connected() {
+		m.ethernet.feedback = "Not connected."
+		return nil
+	}
+	return m.openDeviceDetail(tabEthernet, dev.Device, dev.Device, "", 0)
+}
+
+func (m *Model) selectEthernet() tea.Cmd {
+	if m.ethernet.cursor < 0 || m.ethernet.cursor >= len(m.ethernet.devices) {
+		return nil
+	}
+	dev := m.ethernet.devices[m.ethernet.cursor]
+	m.ethernet.pending = true
+	if dev.Connected() {
+		return ethernetDownCmd(dev.Device)
+	}
+	return ethernetConnectCmd(dev.Device)
+}
+
+func (m Model) renderEthernet(height int) string {
+	if m.ethernet.loading {
+		return ilovetui.S.Faint.Render("Loading ethernet devices…")
+	}
+
+	header := lipgloss.NewStyle().Bold(true).Foreground(ilovetui.S.Subtle).Render("ETHERNET DEVICES")
+	if m.ethernet.pending {
+		header += mutedStyle().Render("  working…")
+	}
+
+	if m.ethernet.err != nil {
+		return lipgloss.JoinVertical(lipgloss.Left, header, "", errorStyle().Render(m.ethernet.err.Error()))
+	}
+	if len(m.ethernet.devices) == 0 {
+		return lipgloss.JoinVertical(lipgloss.Left, header, "", ilovetui.S.Faint.Render("No ethernet devices found."))
+	}
+
+	available := height - 3 // header + blank line + a trailing line for the paginator/feedback
+	if available < 1 {
+		available = 1
+	}
+	p, start, end := paginate(m.ethernet.cursor, len(m.ethernet.devices), available)
+
+	var rows []string
+	for i := start; i < end; i++ {
+		rows = append(rows, m.renderEthernetRow(m.ethernet.devices[i], i == m.ethernet.cursor))
+	}
+	list := strings.Join(rows, "\n")
+
+	footer := renderPaginatorDots(p)
+	if m.ethernet.feedback != "" {
+		footer = errorStyle().Render(m.ethernet.feedback)
+	}
+
+	return lipgloss.JoinVertical(lipgloss.Left, header, "", list, footer)
+}
+
+func (m Model) renderEthernetRow(d network.EthernetDevice, selected bool) string {
+	textStyle := lipgloss.NewStyle().Foreground(ilovetui.S.Text)
+	if selected {
+		textStyle = textStyle.Bold(true).Foreground(ilovetui.S.Primary)
+	}
+	cursor := "  "
+	if selected {
+		cursor = "> "
+	}
+	check := " "
+	if d.Connected() {
+		check = successStyle().Render(icons.I.Check)
+	}
+	name := d.Device
+	if d.Connection != "" {
+		name = d.Connection
+	}
+	details := d.State
+	if d.IP4 != "" {
+		details += " · " + d.IP4
+	}
+	return fmt.Sprintf("%s%s%s %s  %s", cursor, check, textStyle.Render(name), subtleStyle().Render("("+d.Device+")"), subtleStyle().Render(details))
+}

internal/ui/network/keymap.go

@@ -0,0 +1,63 @@
+package network
+
+import (
+	"charm.land/bubbles/v2/key"
+	"github.com/anotherhadi/settuings/internal/keys"
+)
+
+// networkKeyMap renders the bottom help bar, adapting to the active tab and
+// whether a sub-view (password prompt, device info, known-network detail)
+// is open.
+type networkKeyMap struct {
+	m     Model
+	width int
+}
+
+func (k networkKeyMap) ShortHelp() []key.Binding {
+	g := keys.Keys.Global
+	n := keys.Keys.Network
+
+	switch {
+	case k.m.wifi.connecting:
+		return []key.Binding{n.Select, g.Escape, g.Help}
+	case k.m.deviceDetail.open && k.m.deviceDetail.kind == tabWifi:
+		return []key.Binding{g.Up, g.Down, n.RevealSecret, n.Disconnect, g.Escape, g.Help}
+	case k.m.deviceDetail.open:
+		return []key.Binding{g.Up, g.Down, n.Disconnect, g.Escape, g.Help}
+	case k.m.active == tabKnown && k.m.known.detail:
+		return []key.Binding{n.RevealSecret, n.ToggleAuto, n.Forget, g.Escape, g.Help}
+	case k.m.active == tabKnown:
+		return []key.Binding{g.Up, g.Down, n.Select, n.Known, g.Help}
+	case k.m.active == tabWifi:
+		return []key.Binding{g.Up, g.Down, n.Select, n.Disconnect, n.ToggleRadio, g.Help}
+	default:
+		return []key.Binding{g.Up, g.Down, n.Select, g.CycleFocus, n.Known, g.Help}
+	}
+}
+
+func (k networkKeyMap) FullHelp() [][]key.Binding {
+	g := keys.Keys.Global
+	n := keys.Keys.Network
+
+	var bindings []key.Binding
+	switch {
+	case k.m.wifi.connecting:
+		bindings = []key.Binding{n.Select, g.Escape}
+	case k.m.deviceDetail.open && k.m.deviceDetail.kind == tabWifi:
+		bindings = []key.Binding{g.Up, g.Down, g.ScrollUp, g.ScrollDown, n.RevealSecret, n.Disconnect, g.Escape}
+	case k.m.deviceDetail.open:
+		bindings = []key.Binding{g.Up, g.Down, g.ScrollUp, g.ScrollDown, n.Disconnect, g.Escape}
+	case k.m.active == tabKnown && k.m.known.detail:
+		bindings = []key.Binding{n.RevealSecret, n.ToggleAuto, n.Forget, g.Escape}
+	case k.m.active == tabKnown:
+		bindings = []key.Binding{g.Up, g.Down, n.Select, n.Refresh, n.Known}
+	case k.m.active == tabWifi:
+		bindings = []key.Binding{g.Up, g.Down, n.Select, n.Refresh, n.Info, n.Disconnect, n.ToggleRadio, g.CycleFocus, n.Known}
+	case k.m.active == tabEthernet:
+		bindings = []key.Binding{g.Up, g.Down, n.Select, n.Refresh, n.Info, g.CycleFocus, n.Known}
+	default:
+		bindings = []key.Binding{g.Up, g.Down, n.Select, n.Refresh, g.CycleFocus, n.Known}
+	}
+	bindings = append(bindings, g.CommonBindings()...)
+	return keys.ChunkByWidth(bindings, k.width)
+}

internal/ui/network/known.go

@@ -0,0 +1,286 @@
+package network
+
+import (
+	"fmt"
+	"strings"
+
+	"charm.land/bubbles/v2/key"
+	"charm.land/bubbles/v2/viewport"
+	tea "charm.land/bubbletea/v2"
+	"charm.land/lipgloss/v2"
+	ilovetui "github.com/anotherhadi/ilovetui"
+	"github.com/anotherhadi/settuings/internal/icons"
+	"github.com/anotherhadi/settuings/internal/keys"
+	"github.com/anotherhadi/settuings/internal/network"
+	"github.com/anotherhadi/settuings/internal/util"
+)
+
+type knownState struct {
+	loading  bool
+	err      error
+	networks []network.KnownNetwork
+	cursor   int
+	pending  bool
+	feedback string
+
+	detail         bool
+	secretLoading  bool
+	secretRevealed bool
+	secretValue    string
+	secretErr      error
+
+	confirmForget bool
+
+	// Content can exceed a short terminal, so the detail screen is shown in
+	// a viewport.
+	viewport viewport.Model
+}
+
+func newKnownState() knownState {
+	return knownState{loading: true}
+}
+
+func (m *Model) handleKnownList(msg knownListMsg) {
+	m.known.loading = false
+	m.known.err = msg.err
+	if msg.err != nil {
+		return
+	}
+	m.known.networks = msg.networks
+	if m.known.cursor >= len(m.known.networks) {
+		m.known.cursor = max(0, len(m.known.networks)-1)
+	}
+}
+
+func (m *Model) handleKnownSecret(msg knownSecretMsg) {
+	if m.known.selected() == nil || m.known.selected().Name != msg.name {
+		return // stale response for a network we've since navigated away from
+	}
+	m.known.secretLoading = false
+	m.known.secretValue = msg.secret
+	m.known.secretErr = msg.err
+	m.refreshKnownDetailContent()
+}
+
+func (m *Model) handleKnownAction(msg knownActionMsg) tea.Cmd {
+	m.known.pending = false
+	if msg.err != nil {
+		m.known.feedback = msg.err.Error()
+		m.refreshKnownDetailContent()
+		return nil
+	}
+	m.known.feedback = ""
+	m.known.detail = false
+	return fetchKnownCmd()
+}
+
+func (s knownState) selected() *network.KnownNetwork {
+	if s.cursor < 0 || s.cursor >= len(s.networks) {
+		return nil
+	}
+	return &s.networks[s.cursor]
+}
+
+func (m *Model) updateKnown(msg tea.Msg) tea.Cmd {
+	keyMsg, ok := msg.(tea.KeyPressMsg)
+	if !ok {
+		return nil
+	}
+	if m.known.detail {
+		return m.updateKnownDetail(keyMsg)
+	}
+
+	g := keys.Keys.Global
+	n := keys.Keys.Network
+	switch {
+	case key.Matches(keyMsg, g.Up):
+		if m.known.cursor > 0 {
+			m.known.cursor--
+		}
+	case key.Matches(keyMsg, g.Down):
+		if m.known.cursor < len(m.known.networks)-1 {
+			m.known.cursor++
+		}
+	case key.Matches(keyMsg, n.Refresh):
+		return fetchKnownCmd()
+	case key.Matches(keyMsg, n.Select):
+		if sel := m.known.selected(); sel != nil {
+			m.known.detail = true
+			m.known.secretRevealed = false
+			m.known.secretLoading = true
+			m.known.secretValue = ""
+			m.known.secretErr = nil
+			m.openKnownDetail()
+			return fetchSecretCmd(sel.Name)
+		}
+	}
+	return nil
+}
+
+func (m *Model) updateKnownDetail(keyMsg tea.KeyPressMsg) tea.Cmd {
+	g := keys.Keys.Global
+	n := keys.Keys.Network
+
+	if m.known.confirmForget {
+		m.known.confirmForget = false
+		defer m.refreshKnownDetailContent()
+		if keyMsg.String() == "y" || keyMsg.String() == "enter" {
+			if sel := m.known.selected(); sel != nil {
+				m.known.pending = true
+				return forgetCmd(sel.Name)
+			}
+		}
+		return nil
+	}
+
+	switch {
+	case key.Matches(keyMsg, g.Escape):
+		m.known.detail = false
+	case key.Matches(keyMsg, n.RevealSecret):
+		m.known.secretRevealed = !m.known.secretRevealed
+		m.refreshKnownDetailContent()
+	case key.Matches(keyMsg, n.ToggleAuto):
+		if sel := m.known.selected(); sel != nil {
+			m.known.pending = true
+			return toggleAutoConnectCmd(sel.Name, !sel.AutoConnect)
+		}
+	case key.Matches(keyMsg, n.Forget):
+		m.known.confirmForget = true
+		m.refreshKnownDetailContent()
+	case key.Matches(keyMsg, g.Up):
+		util.ScrollLines(&m.known.viewport, -1)
+	case key.Matches(keyMsg, g.Down):
+		util.ScrollLines(&m.known.viewport, 1)
+	case key.Matches(keyMsg, g.ScrollUp):
+		util.ScrollViewport(&m.known.viewport, -1)
+	case key.Matches(keyMsg, g.ScrollDown):
+		util.ScrollViewport(&m.known.viewport, 1)
+	}
+	return nil
+}
+
+// openKnownDetail sizes and populates the detail viewport for the currently
+// selected network. Call it whenever the detail screen is opened.
+func (m *Model) openKnownDetail() {
+	w, h := m.contentBudget()
+	vp := viewport.New()
+	vp.SetWidth(w)
+	vp.SetHeight(h)
+	m.known.viewport = vp
+	m.refreshKnownDetailContent()
+}
+
+// resizeKnownDetail keeps the detail viewport sized to the available space
+// whenever the terminal is resized.
+func (m *Model) resizeKnownDetail() {
+	if !m.known.detail {
+		return
+	}
+	w, h := m.contentBudget()
+	m.known.viewport.SetWidth(w)
+	m.known.viewport.SetHeight(h)
+	m.refreshKnownDetailContent()
+}
+
+func (m *Model) refreshKnownDetailContent() {
+	m.known.viewport.SetContent(m.knownDetailContent())
+	util.RefreshScrollbar(&m.known.viewport)
+}
+
+func (m Model) renderKnown(height int) string {
+	if m.known.detail {
+		return m.renderKnownDetail()
+	}
+	if m.known.loading {
+		return ilovetui.S.Faint.Render("Loading known networks…")
+	}
+
+	header := lipgloss.NewStyle().Bold(true).Foreground(ilovetui.S.Subtle).Render("KNOWN NETWORKS")
+
+	if m.known.err != nil {
+		return lipgloss.JoinVertical(lipgloss.Left, header, "", errorStyle().Render(m.known.err.Error()))
+	}
+	if len(m.known.networks) == 0 {
+		return lipgloss.JoinVertical(lipgloss.Left, header, "", ilovetui.S.Faint.Render("No saved Wi-Fi networks."))
+	}
+
+	available := height - 3 // header + blank line + a trailing line for the paginator
+	if available < 1 {
+		available = 1
+	}
+	p, start, end := paginate(m.known.cursor, len(m.known.networks), available)
+
+	var rows []string
+	for i := start; i < end; i++ {
+		rows = append(rows, m.renderKnownRow(m.known.networks[i], i == m.known.cursor))
+	}
+	list := strings.Join(rows, "\n")
+
+	return lipgloss.JoinVertical(lipgloss.Left, header, "", list, renderPaginatorDots(p))
+}
+
+func (m Model) renderKnownRow(k network.KnownNetwork, selected bool) string {
+	textStyle := lipgloss.NewStyle().Foreground(ilovetui.S.Text)
+	if selected {
+		textStyle = textStyle.Bold(true).Foreground(ilovetui.S.Primary)
+	}
+	cursor := "  "
+	if selected {
+		cursor = "> "
+	}
+	check := " "
+	if k.Active {
+		check = successStyle().Render(icons.I.Check)
+	}
+	auto := "manual"
+	if k.AutoConnect {
+		auto = "auto-join"
+	}
+	return fmt.Sprintf("%s%s%s  %s", cursor, check, textStyle.Render(k.Name), subtleStyle().Render(auto))
+}
+
+func (m Model) renderKnownDetail() string {
+	return m.known.viewport.View()
+}
+
+func (m Model) knownDetailContent() string {
+	sel := m.known.selected()
+	if sel == nil {
+		return ilovetui.S.Faint.Render("No network selected.")
+	}
+
+	rows := []string{
+		lipgloss.NewStyle().Bold(true).Render(sel.Name),
+		"",
+		subtleStyle().Render("Security:    ") + securityLabel(sel.Security),
+		subtleStyle().Render("Auto-join:   ") + fmt.Sprintf("%v", sel.AutoConnect),
+		subtleStyle().Render("Active:      ") + fmt.Sprintf("%v", sel.Active),
+		subtleStyle().Render("Password:    ") + m.renderKnownSecret(),
+	}
+
+	if m.known.feedback != "" {
+		rows = append(rows, "", errorStyle().Render(m.known.feedback))
+	}
+
+	if m.known.confirmForget {
+		rows = append(rows, "", errorStyle().Render(fmt.Sprintf("Forget %q? press y to confirm, any other key to cancel", sel.Name)))
+	}
+
+	return lipgloss.JoinVertical(lipgloss.Left, rows...)
+}
+
+func (m Model) renderKnownSecret() string {
+	if m.known.secretLoading {
+		return mutedStyle().Render("loading…")
+	}
+	if m.known.secretErr != nil {
+		return errorStyle().Render(m.known.secretErr.Error())
+	}
+	if m.known.secretValue == "" {
+		return subtleStyle().Render("(none)")
+	}
+	if !m.known.secretRevealed {
+		return subtleStyle().Render(strings.Repeat("•", len(m.known.secretValue)))
+	}
+	return m.known.secretValue
+}

internal/ui/network/messages.go

@@ -0,0 +1,64 @@
+package network
+
+import "github.com/anotherhadi/settuings/internal/network"
+
+// checkMsg carries the result of network.CheckAvailable.
+type checkMsg struct{ err error }
+
+// tickMsg triggers a periodic refresh of every tab while this page is active.
+type tickMsg struct{}
+
+type wifiListMsg struct {
+	networks       []network.WifiNetwork
+	ip             string
+	device         string // wifi interface name, e.g. "wlo1"
+	connectionName string // active connection profile name, for secret lookup
+	radioOn        bool
+	err            error
+}
+
+type wifiActionMsg struct {
+	err error
+}
+
+type ethernetListMsg struct {
+	devices []network.EthernetDevice
+	err     error
+}
+
+type ethernetActionMsg struct {
+	err error
+}
+
+type vpnListMsg struct {
+	conns []network.VPNConnection
+	err   error
+}
+
+type vpnActionMsg struct {
+	err error
+}
+
+type knownListMsg struct {
+	networks []network.KnownNetwork
+	err      error
+}
+
+type knownSecretMsg struct {
+	name   string
+	secret string
+	err    error
+}
+
+type knownActionMsg struct {
+	err error
+}
+
+type deviceDetailMsg struct {
+	detail network.DeviceDetail
+	err    error
+}
+
+type radioActionMsg struct {
+	err error
+}

internal/ui/network/model.go

@@ -0,0 +1,109 @@
+// Package network provides the "Network" TUI page: a thin, tabbed wrapper
+// around nmcli covering Wi-Fi, Ethernet, VPN, and known Wi-Fi networks.
+package network
+
+import (
+	"charm.land/bubbles/v2/help"
+	tea "charm.land/bubbletea/v2"
+	ilovetui "github.com/anotherhadi/ilovetui"
+	"github.com/anotherhadi/settuings/internal/icons"
+)
+
+type tab int
+
+const (
+	tabWifi tab = iota
+	tabEthernet
+	tabVPN
+	tabKnown // hidden from the tab bar; reachable only via its own shortcut
+)
+
+// visibleTabs are the tabs shown in the tab bar and reachable by cycling.
+var visibleTabs = []tab{tabWifi, tabEthernet, tabVPN}
+
+func (t tab) label() string {
+	switch t {
+	case tabWifi:
+		return "Wifi"
+	case tabEthernet:
+		return "Ethernet"
+	case tabVPN:
+		return "VPN"
+	case tabKnown:
+		return "Known"
+	default:
+		return ""
+	}
+}
+
+func (t tab) icon() string {
+	switch t {
+	case tabWifi:
+		return icons.I.Wifi
+	case tabEthernet:
+		return icons.I.Ethernet
+	case tabVPN:
+		return icons.I.VPN
+	case tabKnown:
+		return icons.I.Lock
+	default:
+		return ""
+	}
+}
+
+type Model struct {
+	active      tab
+	previousTab tab // where to return to when leaving the hidden Known tab
+	width       int
+	height      int
+	help        help.Model
+
+	checkErr error // reason nmcli/NetworkManager is unusable; nil once confirmed OK
+	checked  bool
+
+	wifi         wifiState
+	ethernet     ethernetState
+	vpn          vpnState
+	known        knownState
+	deviceDetail deviceDetailState
+}
+
+func New() Model {
+	return Model{
+		active:   tabWifi,
+		help:     ilovetui.NewHelp(),
+		wifi:     newWifiState(),
+		ethernet: newEthernetState(),
+		vpn:      newVPNState(),
+		known:    newKnownState(),
+	}
+}
+
+func (m Model) Init() tea.Cmd {
+	return nil
+}
+
+// Activate is called every time the user navigates onto this page. It
+// re-checks nmcli availability, kicks off a fetch for every tab, and starts
+// the periodic auto-refresh loop.
+func (m *Model) Activate() tea.Cmd {
+	return tea.Batch(
+		checkCmd(),
+		fetchWifiCmd(),
+		fetchEthernetCmd(),
+		fetchVPNCmd(),
+		fetchKnownCmd(),
+		tickCmd(),
+	)
+}
+
+func (m Model) IsEditing() bool {
+	return m.wifi.connecting || m.known.confirmForget
+}
+
+func (m *Model) SetSize(w, h int) {
+	m.width = w
+	m.height = h
+	m.help.SetWidth(w - 2)
+	m.resizeDetails()
+}

internal/ui/network/pagination.go

@@ -0,0 +1,44 @@
+package network
+
+import (
+	"charm.land/bubbles/v2/paginator"
+	"charm.land/lipgloss/v2"
+	ilovetui "github.com/anotherhadi/ilovetui"
+)
+
+func newPaginator() paginator.Model {
+	p := paginator.New()
+	p.Type = paginator.Dots
+	p.ActiveDot = lipgloss.NewStyle().Foreground(ilovetui.S.Primary).Render("•")
+	p.InactiveDot = lipgloss.NewStyle().Foreground(ilovetui.S.Subtle).Render("•")
+	return p
+}
+
+// paginate slices a list of length total into pages of availableRows items,
+// deriving the current page from cursor (the globally-indexed selection)
+// rather than tracking page state separately. It returns the configured
+// paginator and the [start, end) bounds of the visible slice.
+func paginate(cursor, total, availableRows int) (p paginator.Model, start, end int) {
+	p = newPaginator()
+	perPage := availableRows
+	if perPage < 1 {
+		perPage = 1
+	}
+	p.PerPage = perPage
+	p.SetTotalPages(total)
+	if p.TotalPages > 0 {
+		p.Page = cursor / perPage
+		if p.Page >= p.TotalPages {
+			p.Page = p.TotalPages - 1
+		}
+	}
+	start, end = p.GetSliceBounds(total)
+	return p, start, end
+}
+
+func renderPaginatorDots(p paginator.Model) string {
+	if p.TotalPages <= 1 {
+		return ""
+	}
+	return mutedStyle().Render(p.View())
+}

internal/ui/network/style.go

@@ -0,0 +1,22 @@
+package network
+
+import (
+	"charm.land/lipgloss/v2"
+	ilovetui "github.com/anotherhadi/ilovetui"
+)
+
+func errorStyle() lipgloss.Style {
+	return lipgloss.NewStyle().Foreground(ilovetui.S.Error)
+}
+
+func successStyle() lipgloss.Style {
+	return lipgloss.NewStyle().Foreground(ilovetui.S.Success)
+}
+
+func subtleStyle() lipgloss.Style {
+	return lipgloss.NewStyle().Foreground(ilovetui.S.Subtle)
+}
+
+func mutedStyle() lipgloss.Style {
+	return lipgloss.NewStyle().Foreground(ilovetui.S.Muted)
+}

internal/ui/network/tabbar.go

@@ -0,0 +1,63 @@
+package network
+
+import (
+	"strings"
+
+	"charm.land/lipgloss/v2"
+	ilovetui "github.com/anotherhadi/ilovetui"
+)
+
+// cycleTab moves to the next visible tab. From the hidden Known tab it
+// returns to whichever tab was active before Known was opened.
+func (m *Model) cycleTab() {
+	if m.active == tabKnown {
+		m.active = m.previousTab
+		return
+	}
+	for i, t := range visibleTabs {
+		if t == m.active {
+			m.active = visibleTabs[(i+1)%len(visibleTabs)]
+			return
+		}
+	}
+}
+
+// toggleKnown opens the hidden Known tab, or leaves it back to the
+// previously active tab if it's already open.
+func (m *Model) toggleKnown() {
+	if m.active == tabKnown {
+		m.active = m.previousTab
+		return
+	}
+	m.previousTab = m.active
+	m.active = tabKnown
+}
+
+func (m Model) renderTabBar(width int) string {
+	active := lipgloss.NewStyle().Bold(true).Foreground(ilovetui.S.Primary).Padding(0, 2).
+		Border(lipgloss.NormalBorder(), false, false, true, false).
+		BorderForeground(ilovetui.S.Primary)
+	inactive := lipgloss.NewStyle().Foreground(ilovetui.S.Subtle).Padding(0, 2).
+		Border(lipgloss.NormalBorder(), false, false, true, false).
+		BorderForeground(ilovetui.S.Subtle)
+
+	var tabs []string
+	for _, t := range visibleTabs {
+		style := inactive
+		if t == m.active {
+			style = active
+		}
+		tabs = append(tabs, style.Render(t.icon()+t.label()))
+	}
+	row := lipgloss.JoinHorizontal(lipgloss.Bottom, tabs...)
+
+	filler := width - lipgloss.Width(row)
+	if filler > 0 {
+		row = lipgloss.JoinHorizontal(lipgloss.Bottom, row,
+			lipgloss.NewStyle().
+				Border(lipgloss.NormalBorder(), false, false, true, false).
+				BorderForeground(ilovetui.S.Subtle).
+				Render(strings.Repeat(" ", filler)))
+	}
+	return row
+}

internal/ui/network/update.go

@@ -0,0 +1,115 @@
+package network
+
+import (
+	"charm.land/bubbles/v2/key"
+	tea "charm.land/bubbletea/v2"
+	"github.com/anotherhadi/settuings/internal/keys"
+	"github.com/anotherhadi/settuings/internal/util"
+)
+
+func (m Model) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
+	switch msg := msg.(type) {
+	case checkMsg:
+		wasUnavailable := m.checkErr != nil
+		m.checked = true
+		m.checkErr = msg.err
+		if msg.err == nil && wasUnavailable {
+			// recovered: resume fetching + the auto-refresh loop
+			return m, tea.Batch(fetchWifiCmd(), fetchEthernetCmd(), fetchVPNCmd(), fetchKnownCmd(), tickCmd())
+		}
+		return m, nil
+
+	case tickMsg:
+		if m.checkErr != nil {
+			return m, nil
+		}
+		return m, tea.Batch(fetchWifiCmd(), fetchEthernetCmd(), fetchVPNCmd(), fetchKnownCmd(), tickCmd())
+
+	case wifiListMsg:
+		m.handleWifiList(msg)
+		return m, nil
+	case wifiActionMsg:
+		return m, m.handleWifiAction(msg)
+	case radioActionMsg:
+		return m, m.handleRadioAction(msg)
+
+	case ethernetListMsg:
+		m.handleEthernetList(msg)
+		return m, nil
+	case ethernetActionMsg:
+		return m, m.handleEthernetAction(msg)
+
+	case vpnListMsg:
+		m.handleVPNList(msg)
+		return m, nil
+	case vpnActionMsg:
+		return m, m.handleVPNAction(msg)
+
+	case knownListMsg:
+		m.handleKnownList(msg)
+		return m, nil
+	case knownSecretMsg:
+		m.handleKnownSecret(msg)
+		m.handleDeviceDetailSecret(msg)
+		return m, nil
+	case knownActionMsg:
+		return m, m.handleKnownAction(msg)
+
+	case deviceDetailMsg:
+		m.handleDeviceDetail(msg)
+		return m, nil
+
+	case tea.MouseWheelMsg:
+		if m.deviceDetail.open {
+			return m, m.updateDeviceDetail(msg)
+		}
+		if m.active == tabKnown && m.known.detail {
+			util.HandleMouseWheel(msg, &m.known.viewport)
+		}
+		return m, nil
+
+	case tea.KeyPressMsg:
+		if m.checkErr != nil {
+			if key.Matches(msg, keys.Keys.Network.Refresh) {
+				return m, checkCmd()
+			}
+			return m, nil
+		}
+
+		if m.deviceDetail.open {
+			return m, m.updateDeviceDetail(msg)
+		}
+
+		g := keys.Keys.Global
+		n := keys.Keys.Network
+
+		if !m.IsEditing() {
+			switch {
+			case key.Matches(msg, g.CycleFocus):
+				m.cycleTab()
+				return m, nil
+			case key.Matches(msg, n.Known):
+				m.toggleKnown()
+				return m, nil
+			case key.Matches(msg, g.Help):
+				m.help.ShowAll = !m.help.ShowAll
+				m.resizeDetails()
+				return m, nil
+			}
+		}
+
+		var cmd tea.Cmd
+		switch m.active {
+		case tabWifi:
+			cmd = m.updateWifi(msg)
+		case tabEthernet:
+			cmd = m.updateEthernet(msg)
+		case tabVPN:
+			cmd = m.updateVPN(msg)
+		case tabKnown:
+			cmd = m.updateKnown(msg)
+		}
+		return m, cmd
+	}
+	return m, nil
+}

internal/ui/network/view.go

@@ -0,0 +1,82 @@
+package network
+
+import (
+	"errors"
+
+	tea "charm.land/bubbletea/v2"
+	"charm.land/lipgloss/v2"
+	ilovetui "github.com/anotherhadi/ilovetui"
+	"github.com/anotherhadi/settuings/internal/network"
+)
+
+func windowStyle() lipgloss.Style {
+	return lipgloss.NewStyle().
+		Border(lipgloss.RoundedBorder()).
+		BorderForeground(ilovetui.S.Subtle).
+		Padding(1, 2)
+}
+
+func (m Model) View() tea.View {
+	statusBar := m.renderStatusBar()
+	innerW, innerH := m.contentBudget()
+	tabBar := m.renderTabBar(innerW)
+
+	var body string
+	switch {
+	case !m.checked:
+		body = ilovetui.S.Faint.Render("Checking nmcli…")
+	case m.checkErr != nil:
+		body = m.renderUnavailable()
+	case m.deviceDetail.open:
+		body = m.renderDeviceDetail()
+	default:
+		body = m.renderActiveTab(innerW, innerH)
+	}
+
+	box := lipgloss.NewStyle().Width(innerW).Height(innerH).Render(body)
+	content := windowStyle().Render(lipgloss.JoinVertical(lipgloss.Left, tabBar, box))
+
+	return tea.NewView(lipgloss.JoinVertical(lipgloss.Left, content, statusBar))
+}
+
+func (m Model) renderStatusBar() string {
+	km := networkKeyMap{m: m, width: m.width}
+	return lipgloss.NewStyle().Padding(0, 1).Render(m.help.View(km))
+}
+
+func (m Model) renderActiveTab(width, height int) string {
+	switch m.active {
+	case tabWifi:
+		return m.renderWifi(width, height)
+	case tabEthernet:
+		return m.renderEthernet(height)
+	case tabVPN:
+		return m.renderVPN(height)
+	case tabKnown:
+		return m.renderKnown(height)
+	default:
+		return ""
+	}
+}
+
+func (m Model) renderUnavailable() string {
+	title := lipgloss.NewStyle().Bold(true).Foreground(ilovetui.S.Error).Render("Network page unavailable")
+
+	var hint string
+	switch {
+	case errors.Is(m.checkErr, network.ErrNotFound):
+		hint = "nmcli was not found in PATH. Install NetworkManager to use this page."
+	case errors.Is(m.checkErr, network.ErrNotRunning):
+		hint = "NetworkManager doesn't seem to be running. Try: sudo systemctl start NetworkManager"
+	default:
+		hint = m.checkErr.Error()
+	}
+
+	return lipgloss.JoinVertical(lipgloss.Left,
+		title,
+		"",
+		subtleStyle().Render(hint),
+		"",
+		mutedStyle().Render("Press r to try again once fixed."),
+	)
+}

internal/ui/network/vpn.go

@@ -0,0 +1,139 @@
+package network
+
+import (
+	"fmt"
+	"strings"
+
+	"charm.land/bubbles/v2/key"
+	tea "charm.land/bubbletea/v2"
+	"charm.land/lipgloss/v2"
+	ilovetui "github.com/anotherhadi/ilovetui"
+	"github.com/anotherhadi/settuings/internal/icons"
+	"github.com/anotherhadi/settuings/internal/keys"
+	"github.com/anotherhadi/settuings/internal/network"
+)
+
+type vpnState struct {
+	loading  bool
+	err      error
+	conns    []network.VPNConnection
+	cursor   int
+	pending  bool
+	feedback string
+}
+
+func newVPNState() vpnState {
+	return vpnState{loading: true}
+}
+
+func (m *Model) handleVPNList(msg vpnListMsg) {
+	m.vpn.loading = false
+	m.vpn.err = msg.err
+	if msg.err != nil {
+		return
+	}
+	m.vpn.conns = msg.conns
+	if m.vpn.cursor >= len(m.vpn.conns) {
+		m.vpn.cursor = max(0, len(m.vpn.conns)-1)
+	}
+}
+
+func (m *Model) handleVPNAction(msg vpnActionMsg) tea.Cmd {
+	m.vpn.pending = false
+	if msg.err != nil {
+		m.vpn.feedback = msg.err.Error()
+		return nil
+	}
+	m.vpn.feedback = ""
+	return fetchVPNCmd()
+}
+
+func (m *Model) updateVPN(msg tea.Msg) tea.Cmd {
+	keyMsg, ok := msg.(tea.KeyPressMsg)
+	if !ok {
+		return nil
+	}
+	g := keys.Keys.Global
+	n := keys.Keys.Network
+
+	switch {
+	case key.Matches(keyMsg, g.Up):
+		if m.vpn.cursor > 0 {
+			m.vpn.cursor--
+		}
+	case key.Matches(keyMsg, g.Down):
+		if m.vpn.cursor < len(m.vpn.conns)-1 {
+			m.vpn.cursor++
+		}
+	case key.Matches(keyMsg, n.Refresh):
+		return fetchVPNCmd()
+	case key.Matches(keyMsg, n.Select):
+		return m.selectVPN()
+	}
+	return nil
+}
+
+func (m *Model) selectVPN() tea.Cmd {
+	if m.vpn.cursor < 0 || m.vpn.cursor >= len(m.vpn.conns) {
+		return nil
+	}
+	conn := m.vpn.conns[m.vpn.cursor]
+	m.vpn.pending = true
+	if conn.Active {
+		return vpnDownCmd(conn.Name)
+	}
+	return vpnUpCmd(conn.Name)
+}
+
+func (m Model) renderVPN(height int) string {
+	if m.vpn.loading {
+		return ilovetui.S.Faint.Render("Loading VPN connections…")
+	}
+
+	header := lipgloss.NewStyle().Bold(true).Foreground(ilovetui.S.Subtle).Render("VPN CONNECTIONS")
+	if m.vpn.pending {
+		header += mutedStyle().Render("  working…")
+	}
+
+	if m.vpn.err != nil {
+		return lipgloss.JoinVertical(lipgloss.Left, header, "", errorStyle().Render(m.vpn.err.Error()))
+	}
+	if len(m.vpn.conns) == 0 {
+		return lipgloss.JoinVertical(lipgloss.Left, header, "", ilovetui.S.Faint.Render("No VPN connections configured."))
+	}
+
+	available := height - 3 // header + blank line + a trailing line for the paginator/feedback
+	if available < 1 {
+		available = 1
+	}
+	p, start, end := paginate(m.vpn.cursor, len(m.vpn.conns), available)
+
+	var rows []string
+	for i := start; i < end; i++ {
+		rows = append(rows, m.renderVPNRow(m.vpn.conns[i], i == m.vpn.cursor))
+	}
+	list := strings.Join(rows, "\n")
+
+	footer := renderPaginatorDots(p)
+	if m.vpn.feedback != "" {
+		footer = errorStyle().Render(m.vpn.feedback)
+	}
+
+	return lipgloss.JoinVertical(lipgloss.Left, header, "", list, footer)
+}
+
+func (m Model) renderVPNRow(c network.VPNConnection, selected bool) string {
+	textStyle := lipgloss.NewStyle().Foreground(ilovetui.S.Text)
+	if selected {
+		textStyle = textStyle.Bold(true).Foreground(ilovetui.S.Primary)
+	}
+	cursor := "  "
+	if selected {
+		cursor = "> "
+	}
+	check := " "
+	if c.Active {
+		check = successStyle().Render(icons.I.Check)
+	}
+	return fmt.Sprintf("%s%s%s  %s", cursor, check, textStyle.Render(c.Name), subtleStyle().Render(c.Type))
+}

internal/ui/network/wifi.go

@@ -0,0 +1,296 @@
+package network
+
+import (
+	"fmt"
+	"strings"
+
+	"charm.land/bubbles/v2/key"
+	"charm.land/bubbles/v2/textinput"
+	tea "charm.land/bubbletea/v2"
+	"charm.land/lipgloss/v2"
+	ilovetui "github.com/anotherhadi/ilovetui"
+	"github.com/anotherhadi/settuings/internal/icons"
+	"github.com/anotherhadi/settuings/internal/keys"
+	"github.com/anotherhadi/settuings/internal/network"
+)
+
+type wifiState struct {
+	loading        bool
+	err            error
+	ip             string
+	device         string // wifi interface name, e.g. "wlo1"
+	connectionName string // active connection profile name, e.g. "Djoon 1"
+	radioOn        bool
+	current        *network.WifiNetwork // the AP we're associated with, if any
+	others         []network.WifiNetwork
+	cursor         int
+	pending        bool // a connect/disconnect/rescan/radio-toggle is in flight
+	feedback       string
+
+	connecting  bool
+	connectSSID string
+	password    textinput.Model
+}
+
+func newWifiState() wifiState {
+	ti := textinput.New()
+	ti.Prompt = "Password: "
+	ti.EchoMode = textinput.EchoPassword
+	ti.EchoCharacter = '•'
+	s := ti.Styles()
+	s.Focused.Prompt = lipgloss.NewStyle().Foreground(ilovetui.S.Primary)
+	ti.SetStyles(s)
+	return wifiState{password: ti, loading: true}
+}
+
+func (m Model) isKnownSSID(ssid string) bool {
+	for _, k := range m.known.networks {
+		if k.Name == ssid {
+			return true
+		}
+	}
+	return false
+}
+
+func (m *Model) handleWifiList(msg wifiListMsg) {
+	m.wifi.loading = false
+	m.wifi.err = msg.err
+	m.wifi.radioOn = msg.radioOn
+	if msg.err != nil {
+		return
+	}
+	m.wifi.ip = msg.ip
+	m.wifi.device = msg.device
+	m.wifi.connectionName = msg.connectionName
+	m.wifi.current = nil
+	m.wifi.others = m.wifi.others[:0]
+	for _, n := range msg.networks {
+		n := n
+		if n.Active {
+			m.wifi.current = &n
+			continue
+		}
+		m.wifi.others = append(m.wifi.others, n)
+	}
+	if m.wifi.cursor >= len(m.wifi.others) {
+		m.wifi.cursor = max(0, len(m.wifi.others)-1)
+	}
+}
+
+func (m *Model) handleWifiAction(msg wifiActionMsg) tea.Cmd {
+	m.wifi.pending = false
+	if msg.err != nil {
+		m.wifi.feedback = msg.err.Error()
+		m.deviceDetail.pending = false
+		m.deviceDetail.feedback = msg.err.Error()
+		m.refreshDeviceDetailContent()
+		return nil
+	}
+	m.wifi.feedback = ""
+	m.closeDeviceDetailIfPending(tabWifi)
+	return tea.Batch(fetchWifiCmd(), fetchKnownCmd())
+}
+
+func (m *Model) handleRadioAction(msg radioActionMsg) tea.Cmd {
+	m.wifi.pending = false
+	if msg.err != nil {
+		m.wifi.feedback = msg.err.Error()
+		return nil
+	}
+	m.wifi.feedback = ""
+	return fetchWifiCmd()
+}
+
+func (m *Model) updateWifi(msg tea.Msg) tea.Cmd {
+	if m.wifi.connecting {
+		return m.updateWifiPasswordPrompt(msg)
+	}
+
+	keyMsg, ok := msg.(tea.KeyPressMsg)
+	if !ok {
+		return nil
+	}
+	g := keys.Keys.Global
+	n := keys.Keys.Network
+
+	switch {
+	case key.Matches(keyMsg, g.Up):
+		if m.wifi.cursor > 0 {
+			m.wifi.cursor--
+		}
+	case key.Matches(keyMsg, g.Down):
+		if m.wifi.cursor < len(m.wifi.others)-1 {
+			m.wifi.cursor++
+		}
+	case key.Matches(keyMsg, n.Refresh):
+		m.wifi.pending = true
+		return tea.Batch(rescanWifiCmd(), fetchWifiCmd())
+	case key.Matches(keyMsg, n.Select):
+		return m.selectWifi()
+	case key.Matches(keyMsg, n.ToggleRadio):
+		m.wifi.pending = true
+		return toggleWifiRadioCmd(!m.wifi.radioOn)
+	case key.Matches(keyMsg, n.Disconnect):
+		if m.wifi.current == nil {
+			m.wifi.feedback = "Not connected to a network."
+			return nil
+		}
+		m.wifi.pending = true
+		return disconnectWifiCmd()
+	case key.Matches(keyMsg, n.Info):
+		if m.wifi.current == nil {
+			m.wifi.feedback = "Not connected to a network."
+			return nil
+		}
+		cur := m.wifi.current
+		return m.openDeviceDetail(tabWifi, m.wifi.device, cur.SSID, cur.Security, cur.Signal)
+	}
+	return nil
+}
+
+func (m *Model) selectWifi() tea.Cmd {
+	if len(m.wifi.others) == 0 {
+		return nil
+	}
+	target := m.wifi.others[m.wifi.cursor]
+	if target.Secured() && !m.isKnownSSID(target.SSID) {
+		m.wifi.connecting = true
+		m.wifi.connectSSID = target.SSID
+		m.wifi.password.SetValue("")
+		m.wifi.password.Focus()
+		return nil
+	}
+	m.wifi.pending = true
+	return connectWifiCmd(target.SSID, "")
+}
+
+func (m *Model) updateWifiPasswordPrompt(msg tea.Msg) tea.Cmd {
+	keyMsg, ok := msg.(tea.KeyPressMsg)
+	if !ok {
+		return nil
+	}
+	g := keys.Keys.Global
+	switch {
+	case key.Matches(keyMsg, g.Escape):
+		m.wifi.connecting = false
+		m.wifi.password.Blur()
+		return nil
+	case keyMsg.String() == "enter":
+		ssid := m.wifi.connectSSID
+		password := m.wifi.password.Value()
+		m.wifi.connecting = false
+		m.wifi.password.Blur()
+		m.wifi.pending = true
+		return connectWifiCmd(ssid, password)
+	default:
+		var cmd tea.Cmd
+		m.wifi.password, cmd = m.wifi.password.Update(keyMsg)
+		return cmd
+	}
+}
+
+func (m Model) renderWifi(width, height int) string {
+	if m.wifi.connecting {
+		return m.renderWifiPasswordPrompt()
+	}
+
+	if m.wifi.loading {
+		return ilovetui.S.Faint.Render("Loading Wi-Fi networks…")
+	}
+
+	othersHeader := lipgloss.NewStyle().Bold(true).Foreground(ilovetui.S.Subtle).Render("OTHER NETWORKS")
+	if m.wifi.pending {
+		othersHeader += mutedStyle().Render("  refreshing…")
+	}
+
+	fixed := lipgloss.JoinVertical(lipgloss.Left,
+		m.renderWifiRadioStatus(),
+		"",
+		lipgloss.NewStyle().Bold(true).Foreground(ilovetui.S.Subtle).Render("CURRENT NETWORK"),
+		"",
+		m.renderCurrentWifiCard(width),
+		"",
+		othersHeader,
+		"",
+	)
+	fixedH := lipgloss.Height(fixed)
+
+	if m.wifi.err != nil {
+		return lipgloss.JoinVertical(lipgloss.Left, fixed, errorStyle().Render(m.wifi.err.Error()))
+	}
+	if len(m.wifi.others) == 0 {
+		return lipgloss.JoinVertical(lipgloss.Left, fixed, ilovetui.S.Faint.Render("No other networks in range."))
+	}
+
+	available := height - fixedH - 1 // reserve a trailing line for the paginator/feedback
+	if available < 1 {
+		available = 1
+	}
+	p, start, end := paginate(m.wifi.cursor, len(m.wifi.others), available)
+
+	var rows []string
+	for i := start; i < end; i++ {
+		rows = append(rows, m.renderWifiRow(m.wifi.others[i], i == m.wifi.cursor))
+	}
+	list := strings.Join(rows, "\n")
+
+	footer := renderPaginatorDots(p)
+	if m.wifi.feedback != "" {
+		footer = errorStyle().Render(m.wifi.feedback)
+	}
+
+	return lipgloss.JoinVertical(lipgloss.Left, fixed, list, footer)
+}
+
+func (m Model) renderWifiRadioStatus() string {
+	label := "Wi-Fi: "
+	if m.wifi.radioOn {
+		return label + successStyle().Bold(true).Render("On")
+	}
+	return label + errorStyle().Bold(true).Render("Off")
+}
+
+func (m Model) renderCurrentWifiCard(width int) string {
+	if m.wifi.current == nil {
+		return ilovetui.S.Faint.Render("Not connected")
+	}
+	cur := m.wifi.current
+	check := lipgloss.NewStyle().Foreground(ilovetui.S.Success).Render(icons.I.Check)
+	title := lipgloss.NewStyle().Bold(true).Render(cur.SSID)
+	line1 := check + title
+	line2 := lipgloss.NewStyle().Foreground(ilovetui.S.Subtle).Render(
+		fmt.Sprintf("%s · %d%%", securityLabel(cur.Security), cur.Signal))
+	if m.wifi.ip != "" {
+		line2 += lipgloss.NewStyle().Foreground(ilovetui.S.Subtle).Render(" · " + m.wifi.ip)
+	}
+	return lipgloss.NewStyle().Width(width).Render(lipgloss.JoinVertical(lipgloss.Left, line1, line2))
+}
+
+func (m Model) renderWifiRow(n network.WifiNetwork, selected bool) string {
+	textStyle := lipgloss.NewStyle().Foreground(ilovetui.S.Text)
+	subtleStyle := lipgloss.NewStyle().Foreground(ilovetui.S.Subtle)
+	if selected {
+		textStyle = textStyle.Bold(true).Foreground(ilovetui.S.Primary)
+	}
+	lock := ""
+	if n.Secured() {
+		lock = " " + icons.I.Lock
+	}
+	cursor := "  "
+	if selected {
+		cursor = "> "
+	}
+	return fmt.Sprintf("%s%s%s %s", cursor, textStyle.Render(n.SSID), lock, subtleStyle.Render(fmt.Sprintf("%d%%", n.Signal)))
+}
+
+func (m Model) renderWifiPasswordPrompt() string {
+	title := lipgloss.NewStyle().Bold(true).Render("Connect to " + m.wifi.connectSSID)
+	return lipgloss.JoinVertical(lipgloss.Left, title, "", m.wifi.password.View())
+}
+
+func securityLabel(security string) string {
+	if security == "" || security == "--" {
+		return "Open"
+	}
+	return security
+}

internal/util/cursor.go

@@ -0,0 +1,30 @@
+package util
+
+// CursorMovePage moves cursor forward or backward by one page (perPage items),
+// clamped to [0, total-1].
+func CursorMovePage(cursor, total, perPage int, forward bool) int {
+	step := perPage
+	if step < 1 {
+		step = 1
+	}
+	if forward {
+		cursor += step
+	} else {
+		cursor -= step
+	}
+	if cursor < 0 || total <= 0 {
+		return 0
+	}
+	if cursor >= total {
+		return total - 1
+	}
+	return cursor
+}
+
+// CursorGotoBottom returns the last valid cursor index for a list of total items.
+func CursorGotoBottom(total int) int {
+	if total <= 0 {
+		return 0
+	}
+	return total - 1
+}

internal/util/editor.go

@@ -0,0 +1,65 @@
+package util
+
+import (
+	"log"
+	"os"
+	"os/exec"
+
+	tea "charm.land/bubbletea/v2"
+
+	"github.com/anotherhadi/settuings/internal/config"
+)
+
+type EditorFinishedMsg struct {
+	Content string
+	Err     error
+}
+
+func ResolveEditor() string {
+	editor := config.Global.App.ExternalEditor
+	if editor == "" {
+		editor = os.Getenv("EDITOR")
+	}
+	if editor == "" {
+		editor = "vi"
+	}
+	return editor
+}
+
+func openWithEditor(content string, callback func(string, error) tea.Msg) tea.Cmd {
+	f, err := os.CreateTemp("", "settuings-*.http")
+	if err != nil {
+		log.Printf("editor: create temp file: %v", err)
+		return nil
+	}
+	tmpPath := f.Name()
+	if _, err := f.WriteString(content); err != nil {
+		log.Printf("editor: writing temp file: %v", err)
+	}
+	if err := f.Close(); err != nil {
+		log.Printf("editor: closing temp file: %v", err)
+	}
+	return tea.ExecProcess(exec.Command(ResolveEditor(), tmpPath), func(err error) tea.Msg { // #nosec G204 -- editor from trusted config/$EDITOR, tmpPath from os.CreateTemp
+		defer os.Remove(tmpPath)
+		return callback(tmpPath, err)
+	})
+}
+
+func OpenExternalEditor(content string) tea.Cmd {
+	return openWithEditor(content, func(tmpPath string, err error) tea.Msg {
+		if err != nil {
+			return EditorFinishedMsg{Err: err}
+		}
+		data, readErr := os.ReadFile(tmpPath) // #nosec G304 -- tmpPath is from os.CreateTemp, controlled by this process
+		if readErr != nil {
+			return EditorFinishedMsg{Err: readErr}
+		}
+		return EditorFinishedMsg{Content: string(data)}
+	})
+}
+
+func OpenExternalEditorView(content string) tea.Cmd {
+	return openWithEditor(content, func(_ string, _ error) tea.Msg {
+		return nil
+	})
+}

internal/util/os.go

@@ -0,0 +1,48 @@
+package util
+
+import (
+	"os"
+	"runtime"
+	"strings"
+)
+
+// OSName returns a human-readable OS name, e.g. "NixOS 25.05" or
+// "Ubuntu 24.04.1 LTS", read from /etc/os-release. Falls back to
+// runtime.GOOS if the file is missing or has no PRETTY_NAME.
+func OSName() string {
+	data, err := os.ReadFile("/etc/os-release")
+	if err != nil {
+		return runtime.GOOS
+	}
+	for _, line := range strings.Split(string(data), "\n") {
+		name, ok := strings.CutPrefix(line, "PRETTY_NAME=")
+		if !ok {
+			continue
+		}
+		return strings.Trim(strings.TrimSpace(name), `"`)
+	}
+	return runtime.GOOS
+}
+
+// KernelVersion returns the running kernel release, e.g. "6.12.9-arch1-1".
+func KernelVersion() string {
+	data, err := os.ReadFile("/proc/sys/kernel/osrelease")
+	if err != nil {
+		return "unknown"
+	}
+	return strings.TrimSpace(string(data))
+}
+
+// Hostname returns the machine's hostname.
+func Hostname() string {
+	name, err := os.Hostname()
+	if err != nil {
+		return "unknown"
+	}
+	return name
+}
+
+// Arch returns the CPU architecture, e.g. "amd64".
+func Arch() string {
+	return runtime.GOARCH
+}

internal/util/util.go

@@ -0,0 +1,58 @@
+package util
+
+import (
+	"strings"
+
+	"charm.land/bubbles/v2/paginator"
+	"charm.land/lipgloss/v2"
+)
+
+func Truncate(s string, max int) string {
+	if len(s) <= max {
+		return s
+	}
+	return s[:max-1] + "…"
+}
+
+// EmptyState renders centered placeholder lines, word-wrapping to fit maxW.
+func EmptyState(maxW int, lines ...string) string {
+	return lipgloss.NewStyle().
+		Width(maxW).
+		AlignHorizontal(lipgloss.Center).
+		Render(strings.Join(lines, "\n"))
+}
+
+// CenterLines centers each line horizontally relative to the longest one.
+func CenterLines(lines ...string) string {
+	maxWidth := 0
+	for _, l := range lines {
+		if w := lipgloss.Width(l); w > maxWidth {
+			maxWidth = w
+		}
+	}
+	centered := make([]string, len(lines))
+	for i, l := range lines {
+		centered[i] = lipgloss.PlaceHorizontal(maxWidth, lipgloss.Center, l)
+	}
+	return strings.Join(centered, "\n")
+}
+
+// PageBounds returns clamped start/end indices for rendering a paginated list.
+func PageBounds(p paginator.Model, total int) (start, end int) {
+	start, end = p.GetSliceBounds(total)
+	if start < 0 {
+		start = 0
+	}
+	if end < start {
+		end = start
+	}
+	return
+}
+
+// InferScheme returns "http" for port 80, "https" otherwise.
+func InferScheme(host string) string {
+	if strings.HasSuffix(host, ":80") {
+		return "http"
+	}
+	return "https"
+}

internal/util/viewport.go

@@ -0,0 +1,107 @@
+package util
+
+import (
+	"strings"
+
+	"charm.land/bubbles/v2/viewport"
+	tea "charm.land/bubbletea/v2"
+	"charm.land/lipgloss/v2"
+	ilovetui "github.com/anotherhadi/ilovetui"
+)
+
+// ScrollbarGutterWidth is the fixed width, in terminal columns, that
+// RefreshScrollbar reserves for its gutter — whether or not a scrollbar is
+// actually needed right now. Content that pre-wraps itself to a viewport's
+// width (e.g. glamour markdown) must subtract this, otherwise it overflows
+// the moment the scrollbar's thumb/track appear and the gutter eats into
+// the width the content assumed it had.
+const ScrollbarGutterWidth = 2
+
+// SetYOffset sets vp's Y offset and refreshes its scrollbar gutter to match.
+// Every scroll site should go through this (or [ScrollLines]/[ScrollViewport])
+// instead of calling vp.SetYOffset directly, so the scrollbar never goes
+// stale.
+func SetYOffset(vp *viewport.Model, y int) {
+	vp.SetYOffset(y)
+	RefreshScrollbar(vp)
+}
+
+// ScrollLines scrolls vp by n lines (negative n scrolls up) and refreshes
+// its scrollbar gutter.
+func ScrollLines(vp *viewport.Model, n int) {
+	SetYOffset(vp, vp.YOffset()+n)
+}
+
+// ScrollViewport scrolls vp vertically by half its height, then refreshes
+// its scrollbar gutter. delta should be -1 for up, +1 for down.
+func ScrollViewport(vp *viewport.Model, delta int) {
+	step := vp.Height() / 2
+	if step < 1 {
+		step = 1
+	}
+	ScrollLines(vp, delta*step)
+}
+
+// HandleMouseWheel applies standard mouse wheel scrolling to vp, refreshing
+// its scrollbar gutter on vertical scrolls.
+// Vertical: one line at a time. Shift+vertical or horizontal: scroll 6 columns.
+func HandleMouseWheel(msg tea.MouseWheelMsg, vp *viewport.Model) {
+	switch msg.Button {
+	case tea.MouseWheelUp:
+		if msg.Mod.Contains(tea.ModShift) {
+			vp.ScrollLeft(6)
+		} else {
+			ScrollLines(vp, -1)
+		}
+	case tea.MouseWheelDown:
+		if msg.Mod.Contains(tea.ModShift) {
+			vp.ScrollRight(6)
+		} else {
+			ScrollLines(vp, 1)
+		}
+	case tea.MouseWheelLeft:
+		vp.ScrollLeft(6)
+	case tea.MouseWheelRight:
+		vp.ScrollRight(6)
+	}
+}
+
+// RefreshScrollbar rebuilds vp's left-gutter scrollbar to reflect its
+// current size, content and scroll position. Call it after anything that
+// changes vp's width, height or content; YOffset changes are already
+// covered if they go through [SetYOffset], [ScrollLines], [ScrollViewport]
+// or [HandleMouseWheel].
+//
+// The gutter is always [ScrollbarGutterWidth] columns wide, even when
+// there's nothing to scroll (it's just blank then). That keeps vp's usable
+// content width constant regardless of scroll state, so content sized
+// against vp.Width() doesn't need to know whether a scrollbar happens to be
+// showing right now.
+func RefreshScrollbar(vp *viewport.Model) {
+	height := vp.Height()
+	total := vp.TotalLineCount()
+	blank := strings.Repeat(" ", ScrollbarGutterWidth)
+
+	if height <= 0 || total <= height {
+		vp.LeftGutterFunc = func(viewport.GutterContext) string { return blank }
+		return
+	}
+
+	yOffset := vp.YOffset()
+	thumbSize := max(1, height*height/total)
+	thumbStart := 0
+	if maxOffset := total - height; maxOffset > 0 {
+		thumbStart = yOffset * (height - thumbSize) / maxOffset
+	}
+
+	trackStyle := lipgloss.NewStyle().Foreground(ilovetui.S.Subtle)
+	thumbStyle := lipgloss.NewStyle().Foreground(ilovetui.S.Primary)
+
+	vp.LeftGutterFunc = func(ctx viewport.GutterContext) string {
+		pos := ctx.Index - yOffset
+		if pos >= thumbStart && pos < thumbStart+thumbSize {
+			return thumbStyle.Render("█") + " "
+		}
+		return trackStyle.Render("│") + " "
+	}
+}

nix/gomod2nix.toml

@@ -0,0 +1,254 @@
+schema = 3
+
+[mod]
+  [mod.'charm.land/bubbles/v2']
+    version = 'v2.1.0'
+    hash = 'sha256-2OmqpBrl+taOJzAhVM6OReLmoYRxZOXx9JqFNjQjsPA='
+
+  [mod.'charm.land/bubbletea/v2']
+    version = 'v2.0.6'
+    hash = 'sha256-1jxXmcnI4peUE0Xs3HGe57pIhRONx235aAaeqm2r434='
+
+  [mod.'charm.land/glamour/v2']
+    version = 'v2.0.0'
+    hash = 'sha256-CZYlNGw2MihqnSHf1Xxqz55NnqW9fVpLxyvLItryIw4='
+
+  [mod.'charm.land/lipgloss/v2']
+    version = 'v2.0.3'
+    hash = 'sha256-/RFkSUscU3NwymzT+PfizGf3XyQIdVGQlX7vxktCUGk='
+
+  [mod.'github.com/alecthomas/chroma/v2']
+    version = 'v2.24.1'
+    hash = 'sha256-DufsljWRKireFuLFcnPozuF0N3UoRYGlEfNFMD+z0ng='
+
+  [mod.'github.com/andybalholm/brotli']
+    version = 'v1.0.4'
+    hash = 'sha256-gAnPRdGP4yna4hiRIEDyBtDOVJqd7RU27wlPu96Rdf8='
+
+  [mod.'github.com/anotherhadi/ilovetui']
+    version = 'v0.1.6'
+    hash = 'sha256-7E+7UFks5vM3XWCvX2joFmHGcW7qqnoox6ZPFglaLO4='
+
+  [mod.'github.com/atotto/clipboard']
+    version = 'v0.1.4'
+    hash = 'sha256-ZZ7U5X0gWOu8zcjZcWbcpzGOGdycwq0TjTFh/eZHjXk='
+
+  [mod.'github.com/aymerick/douceur']
+    version = 'v0.2.0'
+    hash = 'sha256-NiBX8EfOvLXNiK3pJaZX4N73YgfzdrzRXdiBFe3X3sE='
+
+  [mod.'github.com/charmbracelet/colorprofile']
+    version = 'v0.4.3'
+    hash = 'sha256-y+QDUxGOKhugEMQLRUTZYT2C+wKqYHnMLJ44jbh7+JA='
+
+  [mod.'github.com/charmbracelet/ultraviolet']
+    version = 'v0.0.0-20260511121909-c840852527f3'
+    hash = 'sha256-oWEEaaetCmXvflD03MWy8qD105Kd62iI62+lxofE9Ns='
+
+  [mod.'github.com/charmbracelet/x/ansi']
+    version = 'v0.11.7'
+    hash = 'sha256-q8BZJq4K7NE5ETocN9/G/EoV0dUyD703ONSfHiUYzWQ='
+
+  [mod.'github.com/charmbracelet/x/exp/slice']
+    version = 'v0.0.0-20260517005351-920740d613be'
+    hash = 'sha256-bMsbEzP1gHA2OJx4zMYZUI3UFhcTG+mcFm8rRY+Khh8='
+
+  [mod.'github.com/charmbracelet/x/term']
+    version = 'v0.2.2'
+    hash = 'sha256-KF7IU1Luxl/sZP6XjomWB2e3lxSUS4/5AahhapGir/4='
+
+  [mod.'github.com/charmbracelet/x/termios']
+    version = 'v0.1.1'
+    hash = 'sha256-sri3LpHCBhGvnJldDzBxwbbZpeSGZVCJFOUL45uBFds='
+
+  [mod.'github.com/charmbracelet/x/windows']
+    version = 'v0.2.2'
+    hash = 'sha256-CvmE8kAC5wlPSeWjl2hc5xizvGS2FeOLHw84froldkk='
+
+  [mod.'github.com/clipperhouse/displaywidth']
+    version = 'v0.11.0'
+    hash = 'sha256-WokyTaofEy95xlshqK5YDzpemhXV5oaQifxS9YyfCXo='
+
+  [mod.'github.com/clipperhouse/uax29/v2']
+    version = 'v2.7.0'
+    hash = 'sha256-GO3az7WiGcwU0OvmocwdfR5ohGRL8NbjscIaMyhAdxE='
+
+  [mod.'github.com/dlclark/regexp2']
+    version = 'v1.12.0'
+    hash = 'sha256-PVX2rDCkiG0vyA1CbDi3bzLeZ2T8hcqJv3pZ5YwGzMI='
+
+  [mod.'github.com/dustin/go-humanize']
+    version = 'v1.0.1'
+    hash = 'sha256-yuvxYYngpfVkUg9yAmG99IUVmADTQA0tMbBXe0Fq0Mc='
+
+  [mod.'github.com/fsnotify/fsnotify']
+    version = 'v1.10.1'
+    hash = 'sha256-6LBLgsh4nKkMpgRKVsYFEaGDSU1fncBcWVSjKBdfgjU='
+
+  [mod.'github.com/go-viper/mapstructure/v2']
+    version = 'v2.5.0'
+    hash = 'sha256-LbrCBANBprVI84M0CWrXc7rriJL5ac5VKbh58LBTw7U='
+
+  [mod.'github.com/golang/groupcache']
+    version = 'v0.0.0-20210331224755-41bb18bfe9da'
+    hash = 'sha256-7Gs7CS9gEYZkbu5P4hqPGBpeGZWC64VDwraSKFF+VR0='
+
+  [mod.'github.com/google/uuid']
+    version = 'v1.6.0'
+    hash = 'sha256-VWl9sqUzdOuhW0KzQlv0gwwUQClYkmZwSydHG2sALYw='
+
+  [mod.'github.com/gorilla/css']
+    version = 'v1.0.1'
+    hash = 'sha256-6JwNHqlY2NpZ0pSQTyYPSpiNqjXOdFHqrUT10sv3y8A='
+
+  [mod.'github.com/gorilla/websocket']
+    version = 'v1.5.0'
+    hash = 'sha256-EYVgkSEMo4HaVrsWKqnsYRp8SSS8gNf7t+Elva02Ofc='
+
+  [mod.'github.com/inconshreveable/mousetrap']
+    version = 'v1.1.0'
+    hash = 'sha256-XWlYH0c8IcxAwQTnIi6WYqq44nOKUylSWxWO/vi+8pE='
+
+  [mod.'github.com/klauspost/compress']
+    version = 'v1.17.8'
+    hash = 'sha256-8rgCCfHX29le8m6fyVn6gwFde5TPUHjwQqZqv9JIubs='
+
+  [mod.'github.com/lqqyt2423/go-mitmproxy']
+    version = 'v1.8.11'
+    hash = 'sha256-PoCL6TOt99JsenH4XFx+7MqIzzYnnLHYwUpEQ7kxxyg='
+
+  [mod.'github.com/lucasb-eyer/go-colorful']
+    version = 'v1.4.0'
+    hash = 'sha256-i/3GDHKEMLCy0kc3mtyk58UWYOPmKoUVaq6QCAWXKP0='
+
+  [mod.'github.com/mattn/go-isatty']
+    version = 'v0.0.22'
+    hash = 'sha256-6O/0jc33pKUzlzUGpH8Ekk54XgJvx6Qe7kJtbcNJAV4='
+
+  [mod.'github.com/mattn/go-runewidth']
+    version = 'v0.0.23'
+    hash = 'sha256-SmChZ2U1aR8pW3LPhdM7KcVF5TO6VcHgRzBtUXbBWJA='
+
+  [mod.'github.com/microcosm-cc/bluemonday']
+    version = 'v1.0.27'
+    hash = 'sha256-EZSya9FLPQ83CL7N2cZy21fdS35hViTkiMK5f3op8Es='
+
+  [mod.'github.com/muesli/cancelreader']
+    version = 'v0.2.2'
+    hash = 'sha256-uEPpzwRJBJsQWBw6M71FDfgJuR7n55d/7IV8MO+rpwQ='
+
+  [mod.'github.com/ncruces/go-strftime']
+    version = 'v1.0.0'
+    hash = 'sha256-GYIwYDONuv/yTE0AEugCHQbtV3oiBaco93xUNYFcVBQ='
+
+  [mod.'github.com/pelletier/go-toml/v2']
+    version = 'v2.3.1'
+    hash = 'sha256-5H8+UOtPOs+Yc+8oVT/3bugCCdbq3jFMH6eOW8dadyg='
+
+  [mod.'github.com/remyoudompheng/bigfft']
+    version = 'v0.0.0-20230129092748-24d4a6f8daec'
+    hash = 'sha256-vYmpyCE37eBYP/navhaLV4oX4/nu0Z/StAocLIFqrmM='
+
+  [mod.'github.com/rivo/uniseg']
+    version = 'v0.4.7'
+    hash = 'sha256-rDcdNYH6ZD8KouyyiZCUEy8JrjOQoAkxHBhugrfHjFo='
+
+  [mod.'github.com/sagikazarmark/locafero']
+    version = 'v0.12.0'
+    hash = 'sha256-EXk9S5Z5sYyApAzCgHIugsGMbt/pHWRfHYFZH5D+5Ws='
+
+  [mod.'github.com/sahilm/fuzzy']
+    version = 'v0.1.1'
+    hash = 'sha256-f2VsDI6G+V2w31tSDzbZPi9EI2E7jRV6Aq8yeOorSZY='
+
+  [mod.'github.com/satori/go.uuid']
+    version = 'v1.2.0'
+    hash = 'sha256-y/lSGbnZa7mYJCs30a3LTyjfCFQSaYp8GbVR8dwtmsg='
+
+  [mod.'github.com/sirupsen/logrus']
+    version = 'v1.9.4'
+    hash = 'sha256-ltRvmtM3XTCAFwY0IesfRqYIivyXPPuvkFjL4ARh1wg='
+
+  [mod.'github.com/spf13/afero']
+    version = 'v1.15.0'
+    hash = 'sha256-LhcezbOqfuBzacytbqck0hNUxi6NbWNhifUc5/9uHQ8='
+
+  [mod.'github.com/spf13/cast']
+    version = 'v1.10.0'
+    hash = 'sha256-dQ6Qqf26IZsa6XsGKP7GDuCj+WmSsBmkBwGTDfue/rk='
+
+  [mod.'github.com/spf13/cobra']
+    version = 'v1.10.2'
+    hash = 'sha256-nbRCTFiDCC2jKK7AHi79n7urYCMP5yDZnWtNVJrDi+k='
+
+  [mod.'github.com/spf13/pflag']
+    version = 'v1.0.10'
+    hash = 'sha256-uDPnWjHpSrzXr17KEYEA1yAbizfcsfo5AyztY2tS6ZU='
+
+  [mod.'github.com/spf13/viper']
+    version = 'v1.21.0'
+    hash = 'sha256-A9A8i7HH/ge4j3hw7G++HNj8BjhhpZKvxHhfY+QAxkI='
+
+  [mod.'github.com/subosito/gotenv']
+    version = 'v1.6.0'
+    hash = 'sha256-LspbjTniiq2xAICSXmgqP7carwlNaLqnCTQfw2pa80A='
+
+  [mod.'github.com/xo/terminfo']
+    version = 'v0.0.0-20220910002029-abceb7e1c41e'
+    hash = 'sha256-GyCDxxMQhXA3Pi/TsWXpA8cX5akEoZV7CFx4RO3rARU='
+
+  [mod.'github.com/yuin/goldmark']
+    version = 'v1.8.2'
+    hash = 'sha256-LoWfW1Tb6mNuMR7SoA/4SJv4pTKfsVXqeXEVm4uEQ7Q='
+
+  [mod.'github.com/yuin/goldmark-emoji']
+    version = 'v1.0.6'
+    hash = 'sha256-+d6bZzOPE+JSFsZbQNZMCWE+n3jgcQnkPETVk47mxSY='
+
+  [mod.'github.com/yuin/gopher-lua']
+    version = 'v1.1.2'
+    hash = 'sha256-2YMCxv7RO3uqq6OTjvE0kR9nTt+n2cF+MrLtGEW68po='
+
+  [mod.'go.uber.org/atomic']
+    version = 'v1.11.0'
+    hash = 'sha256-TyYws/cSPVqYNffFX0gbDml1bD4bBGcysrUWU7mHPIY='
+
+  [mod.'go.yaml.in/yaml/v3']
+    version = 'v3.0.4'
+    hash = 'sha256-NkGFiDPoCxbr3LFsI6OCygjjkY0rdmg5ggvVVwpyDQ4='
+
+  [mod.'golang.org/x/net']
+    version = 'v0.55.0'
+    hash = 'sha256-Phi2mSmBGOJcvqPPAit3uqF3UP8SKRI9dHj6yTM3s5s='
+
+  [mod.'golang.org/x/sync']
+    version = 'v0.20.0'
+    hash = 'sha256-ybcjhCfK6lroUM0yswUvWooW8MOQZBXyiSqoxG6Uy0Y='
+
+  [mod.'golang.org/x/sys']
+    version = 'v0.45.0'
+    hash = 'sha256-hkBoNazrDA67ER6sWhb+EKxx9nJ24+nz3zGy+zT5Hvw='
+
+  [mod.'golang.org/x/text']
+    version = 'v0.37.0'
+    hash = 'sha256-8XDOnlPIybcDRy89fkjG5VqtIt5Ku+LmaqYhgKl7i1E='
+
+  [mod.'gopkg.in/yaml.v3']
+    version = 'v3.0.1'
+    hash = 'sha256-FqL9TKYJ0XkNwJFnq9j0VvJ5ZUU1RvH/52h/f5bkYAU='
+
+  [mod.'modernc.org/libc']
+    version = 'v1.72.3'
+    hash = 'sha256-eOCoqSnX/VzpG63nh1j3JpXRndnZZcn2cDTeutexXAI='
+
+  [mod.'modernc.org/mathutil']
+    version = 'v1.7.1'
+    hash = 'sha256-COZ5rF2GhQVR1r6a0DanJ8qwQ94JSKdQxTMWrDzE0Cc='
+
+  [mod.'modernc.org/memory']
+    version = 'v1.11.0'
+    hash = 'sha256-MkybF8vvrxXS5j7O8w3skwTo0aMo1yjWS0K440rYcHM='
+
+  [mod.'modernc.org/sqlite']
+    version = 'v1.50.1'
+    hash = 'sha256-JbGP3eerH/6mgzI0aq9SpLLwe6ld6PV/zJReG8mLQN0='