update

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

hosts/work/configuration.nix

@@ -13,12 +13,9 @@
     ../../nixos/hyprland.nix
     ../../nixos/kernel-hardening.nix
     ../../nixos/vulnix.nix
-    ../../home/programs/gui/helium/system.nix # I hate browser's configuration..
+    ../../home/gui/helium/system.nix # I hate browser's configuration..
 
     # CHANGEME: You should probably remove those things:
-    ./persistence.nix # impermanence: what to keep once "/" is wiped on boot
-    ./usbguard.nix
-    ./disko.nix
     ./secrets
     ./wireguard.nix
 
@@ -31,6 +28,67 @@
 
   users.users.${config.var.username}.hashedPassword = "$y$j9T$quUlRuvuYJ18asD8SUrh11$0mHCP7ZRIOYjNHY0oT.aFfVho1V0M65eClLzVo0RARD"; # CHANGEME: This is my password
 
+  # Impermanence: declares what should survive a wipe of "/".
+  environment.persistence."/persist" = {
+    hideMounts = true;
+
+    directories = [
+      "/etc/NetworkManager/system-connections" # Wifi connections, VPN
+      "/var/lib/bluetooth" # Bluetooth connections
+      "/var/lib/nixos" # keeps uid/gid stable across boots
+      "/var/lib/systemd/coredump"
+      "/var/lib/upower" # battery calibration state
+      "/var/lib/systemd/backlight" # remembers screen brightness
+      "/var/lib/systemd/timers" # last-run timestamps (e.g. nix gc weekly)
+      "/var/log"
+      "/var/db/sudo/lectured" # remembers that the sudo lecture was already shown
+    ];
+
+    files = [
+      "/etc/machine-id"
+      "/etc/ssh/ssh_host_ed25519_key"
+      "/etc/ssh/ssh_host_ed25519_key.pub"
+      "/etc/ssh/ssh_host_rsa_key"
+      "/etc/ssh/ssh_host_rsa_key.pub"
+      "/var/lib/systemd/random-seed" # avoid a weak entropy pool on first boot
+    ];
+  };
+
+  # USBGuard:
+  # The following line allow all USB devices until a proper policy is configured.
+  # Run `sudo usbguard generate-policy` with your devices plugged in,
+  # then set rules = "<output>" and switch implicitPolicyTarget to "block".
+  # services.usbguard.implicitPolicyTarget = lib.mkForce "allow";
+  services.usbguard = {
+    enable = true;
+    implicitPolicyTarget = "block";
+    IPCAllowedUsers = [
+      "root"
+    ];
+    rules = ''
+      allow id 1d6b:0002 name "xHCI Host Controller"
+      allow id 0951:1666 name "DataTraveler 3.0"
+      allow id 1d6b:0003 name "xHCI Host Controller"
+      allow id 0461:574a name "HP 125 USB Optical Mouse"
+      allow id 0461:554a name "HP 125 Wired Keyboard"
+      allow id 1f75:0903 name "USB DISK"
+      allow id 17ef:30b7 name "USB2.0 Hub             "
+      allow id 1d6b:0003 name "xHCI Host Controller"
+      allow id 17ef:30bb name "ThinkPad Thunderbolt 4 Dock USB Audio"
+      allow id 1d6b:0002 name "xHCI Host Controller"
+      allow id 17ef:30b4 name "ThinkPad Thunderbolt 4 Dock MCU Contoller"
+      allow id 17ef:30ba name "V1003"
+      allow id 8087:0b40 name "USB3.0 Hub"
+      allow id 17ef:30b5 name "40B1"
+      allow id 17ef:30b6 name "USB3.1 Hub             "
+      allow id 0461:574a name "HP 125 USB Optical Mouse"
+      allow id 0461:554a name "HP 125 Wired Keyboard"
+      allow id 17ef:30b9 name "USB2.0 Hub             "
+      allow id 0bda:8153 name "USB 10/100/1000 LAN"
+      allow id 17ef:30b8 name "USB3.1 Hub             "
+    '';
+  };
+
   # Don't touch this
   system.stateVersion = "26.05";
 }