improve documentation

nixos/grub.nix

@@ -1,55 +0,0 @@
-{ pkgs, config, ... }: {
-  stylix.targets.grub.enable = false;
-
-  boot = {
-    bootspec.enable = true;
-    loader = {
-      efi.canTouchEfiVariables = true;
-      grub = {
-        enable = true;
-        devices = [ "nodev" ];
-        efiSupport = true;
-        useOSProber = true;
-      };
-
-      grub2-theme = {
-        enable = true;
-        theme = "whitesur";
-        icon = "whitesur";
-        splashImage = config.stylix.image;
-        bootMenuConfig = ''
-          item_color = "#333333"
-          selected_item_color = "#000000"
-          left = 30%
-          top = 30%
-          width = 40%
-          height = 40%
-          item_font = "Unifont Regular 24"
-          icon_width = 48
-          icon_height = 48
-          item_icon_space = 24
-          item_height = 56
-          item_padding = 8
-          item_spacing = 16
-          selected_item_pixmap_style = "select_*.png"
-        '';
-      };
-    };
-
-    tmp.cleanOnBoot = true;
-    kernelPackages =
-      pkgs.linuxPackages_latest; # _zen, _hardened, _rt, _rt_latest, etc.
-
-    # Silent boot
-    kernelParams = [
-      "quiet"
-      "splash"
-      "vga=current"
-      "rd.systemd.show_status=false"
-      "rd.udev.log_level=3"
-      "udev.log_priority=3"
-    ];
-    consoleLogLevel = 0;
-    initrd.verbose = false;
-  };
-}

nixos/sddm.nix

@@ -1,3 +1,4 @@
+# SDDM is a display manager for X11 and Wayland
 { pkgs, inputs, config, lib, ... }:
 let
   foreground = config.theme.textColorOnWallpaper;

nixos/tailscale.nix

@@ -1,3 +1,4 @@
+# Tailscale is a VPN service that makes it easy to connect your devices between each other.
 { config, ... }: {
   security.sudo.extraRules = [{
     users = [ config.var.username ];

nixos/tuigreet.nix

@@ -1,3 +1,5 @@
+# TUIGreet is a display manager.
+# Legacy, I'm now using SDDM
 { pkgs, ... }: {
   services.greetd = {
     enable = true;

nixos/utils.nix

@@ -3,6 +3,10 @@ let
   hostname = config.var.hostname;
   keyboardLayout = config.var.keyboardLayout;
   configDir = config.var.configDirectory;
+  timeZone = config.var.timeZone;
+  defaultLocale = config.var.defaultLocale;
+  extraLocale = config.var.extraLocale;
+  autoUpgrade = config.var.autoUpgrade;
 in {
   networking.hostName = hostname;
 
@@ -10,7 +14,7 @@ in {
   systemd.services.NetworkManager-wait-online.enable = false;
 
   system.autoUpgrade = {
-    enable = config.var.autoUpgrade;
+    enable = autoUpgrade;
     dates = "04:00";
     flake = "${configDir}";
     flags = [ "--update-input" "nixpkgs" "--commit-lock-file" ];
@@ -18,20 +22,20 @@ in {
   };
 
   time = {
-    timeZone = config.var.timeZone;
+    timeZone = timeZone;
     hardwareClockInLocalTime = true;
   };
-  i18n.defaultLocale = config.var.defaultLocale;
+  i18n.defaultLocale = defaultLocale;
   i18n.extraLocaleSettings = {
-    LC_ADDRESS = config.var.extraLocale;
-    LC_IDENTIFICATION = config.var.extraLocale;
-    LC_MEASUREMENT = config.var.extraLocale;
-    LC_MONETARY = config.var.extraLocale;
-    LC_NAME = config.var.extraLocale;
-    LC_NUMERIC = config.var.extraLocale;
-    LC_PAPER = config.var.extraLocale;
-    LC_TELEPHONE = config.var.extraLocale;
-    LC_TIME = config.var.extraLocale;
+    LC_ADDRESS = extraLocale;
+    LC_IDENTIFICATION = extraLocale;
+    LC_MEASUREMENT = extraLocale;
+    LC_MONETARY = extraLocale;
+    LC_NAME = extraLocale;
+    LC_NUMERIC = extraLocale;
+    LC_PAPER = extraLocale;
+    LC_TELEPHONE = extraLocale;
+    LC_TIME = extraLocale;
   };
 
   services = {