refactor: configure more core system options via liminalOS module

hosts/demeter/configuration.nix

@@ -14,6 +14,8 @@
     ./hardware-configuration.nix
   ];
 
+  networking.hostName = "demeter"; # Define your hostname.
+
   liminalOS = {
     flakeLocation = "/home/youwen/.config/liminalOS";
     config.allowUnfree = true;
@@ -42,87 +44,35 @@
     programs.flatpak.enable = true;
   };
 
-  # Bootloader.
-  boot.loader = {
-    efi.canTouchEfiVariables = true;
-    timeout = 15;
-    # Lanzaboote currently replaces the systemd-boot module.
-    # This setting is usually set to true in configuration.nix
-    # generated at installation time. So we force it to false
-    # for now.
-    systemd-boot = {
-      enable = false;
-      consoleMode = "auto";
-    };
-  };
-
-  boot = {
-    plymouth = {
-      enable = true;
-      font = "${config.stylix.fonts.monospace.package}/share/fonts/truetype/NerdFonts/CaskaydiaCove/CaskaydiaCoveNerdFontMono-Regular.ttf";
-    };
-
-    # Enable "Silent Boot"
-    consoleLogLevel = 3;
-    initrd.verbose = false;
-    kernelParams = [
-      "quiet"
-      "splash"
-      "boot.shell_on_fail"
-      "rd.systemd.show_status=false"
-      "rd.udev.log_level=3"
-      "udev.log_priority=3"
-    ];
-    initrd.systemd.enable = true;
-  };
-
-  boot.lanzaboote = {
-    enable = true;
-    pkiBundle = "/etc/secureboot";
-  };
-
-  boot.initrd.luks.devices."luks-af320a0f-b388-43f5-b5a3-af2b47cfc716".device =
-    "/dev/disk/by-uuid/af320a0f-b388-43f5-b5a3-af2b47cfc716";
-
-  networking.hostName = "demeter"; # Define your hostname.
-  # networking.wireless.enable = true;  # Enables wireless support via wpa_supplicant.
-
-  # select kernel
-  boot.kernelPackages = pkgs.linuxPackages_zen;
-
-  # Configure network proxy if necessary
-  # networking.proxy.default = "http://user:password@proxy:port/";
-  # networking.proxy.noProxy = "127.0.0.1,localhost,internal.domain";
-
-  # Enable networking
-  networking.networkmanager.enable = true;
-
-  # Set your time zone.
   time.timeZone = "America/Los_Angeles";
 
-  # Select internationalisation properties.
-  i18n.defaultLocale = "en_US.UTF-8";
+  hardware.cpu.intel.updateMicrocode = true;
 
-  i18n.extraLocaleSettings = {
-    LC_ADDRESS = "en_US.UTF-8";
-    LC_IDENTIFICATION = "en_US.UTF-8";
-    LC_MEASUREMENT = "en_US.UTF-8";
-    LC_MONETARY = "en_US.UTF-8";
-    LC_NAME = "en_US.UTF-8";
-    LC_NUMERIC = "en_US.UTF-8";
-    LC_PAPER = "en_US.UTF-8";
-    LC_TELEPHONE = "en_US.UTF-8";
-    LC_TIME = "en_US.UTF-8";
+  # Bootloader.
+  boot = {
+    loader = {
+      efi.canTouchEfiVariables = true;
+      timeout = 15;
+      # Lanzaboote currently replaces the systemd-boot module.
+      # This setting is usually set to true in configuration.nix
+      # generated at installation time. So we force it to false
+      # for now.
+      systemd-boot = {
+        enable = false;
+        consoleMode = "auto";
+      };
+    };
+    lanzaboote = {
+      enable = true;
+      pkiBundle = "/etc/secureboot";
+    };
+
+    kernelPackages = pkgs.linuxPackages_zen;
+
+    initrd.luks.devices."luks-af320a0f-b388-43f5-b5a3-af2b47cfc716".device =
+      "/dev/disk/by-uuid/af320a0f-b388-43f5-b5a3-af2b47cfc716";
   };
 
-  systemd.services = {
-    NetworkManager-wait-online.enable = false;
-  };
-
-  # Enable the X11 windowing system.
-  # You can disable this if you're only using the Wayland session.
-  services.xserver.enable = false;
-
   programs.nix-ld = {
     enable = true;
     libraries = with pkgs; [
@@ -132,24 +82,6 @@
     ];
   };
 
-  hardware.bluetooth = {
-    enable = true;
-    powerOnBoot = true;
-  };
-
-  services.blueman.enable = true;
-
-  # services.desktopManager.plasma6.enable = true;
-
-  # Configure keymap in X11
-  services.xserver = {
-    xkb.layout = "us";
-    xkb.variant = "";
-  };
-
-  # Enable touchpad support (enabled default in most desktopManager).
-  # services.xserver.libinput.enable = true;
-
   # Define a user account. Don't forget to set a password with ‘passwd’.
   users.users.youwen = {
     isNormalUser = true;
@@ -164,32 +96,6 @@
     ];
   };
 
-  services.udev.extraRules = ''
-    KERNEL=="cpu_dma_latency", GROUP="realtime"
-  '';
-
-  # List packages installed in system profile. To search, run:
-  # $ nix search wget
-  environment.systemPackages = with pkgs; [
-    wget
-    git
-    curl
-  ];
-
-  # Some programs need SUID wrappers, can be configured further or are
-  # started in user sessions.
-  # programs.mtr.enable = true;
-  programs.gnupg.agent = {
-    enable = true;
-    enableSSHSupport = true;
-  };
-
-  programs.dconf.enable = true;
-
-  programs.hyprland.enable = true;
-
-  hardware.cpu.intel.updateMicrocode = true;
-
   programs.zsh.enable = false;
   programs.fish.enable = true;
   users.users.youwen.shell = pkgs.fish;

modules/linux/core/default.nix

@@ -46,12 +46,43 @@ in
       '';
     };
     suppressWarnings = lib.mkEnableOption "suppress warnings";
+    networking = {
+      enable = lib.mkOption {
+        type = lib.types.bool;
+        default = true;
+        description = ''Whether to set up and enable networking daemons.'';
+      };
+      backend = lib.mkOption {
+        type = lib.types.enum [
+          "wpa_supplicant"
+          "iwd"
+        ];
+        default = "wpa_supplicant";
+        description = ''
+          Which backend to use for networking. Default is wpa_supplicant with NetworkManager as a frontend. With iwd, iwctl is the frontend.
+        '';
+      };
+    };
+    bluetooth.enable = lib.mkOption {
+      type = lib.types.bool;
+      default = true;
+      description = ''
+        Whether to enable bluetooth and blueman.
+      '';
+    };
   };
 
   config = lib.mkIf cfg.enable {
-    environment.systemPackages = [
-      inputs.viminal.packages.${pkgs.system}.default
-    ];
+    environment.systemPackages =
+      with pkgs;
+      [
+        wget
+        git
+        curl
+      ]
+      ++ [
+        inputs.viminal.packages.${pkgs.system}.default
+      ];
 
     environment.variables = {
       EDITOR = "nvim";
@@ -124,6 +155,33 @@ in
 
     hardware.enableRedistributableFirmware = true;
 
+    networking.networkmanager.enable = lib.mkIf (
+      cfg.networking.enable && cfg.networking.backend == "wpa_supplicant"
+    ) true;
+
+    systemd.services.NetworkManager-wait-online.enable = lib.mkIf (
+      cfg.networking.enable && cfg.networking.backend == "wpa_supplicant"
+    ) false;
+
+    networking.wireless.iwd = lib.mkIf (cfg.networking.enable && cfg.networking.backend == "iwd") {
+      enable = true;
+      settings.General.EnableNetworkConfiguration = true;
+    };
+
+    programs.gnupg.agent = {
+      enable = true;
+      enableSSHSupport = true;
+    };
+
+    programs.dconf.enable = true;
+
+    hardware.bluetooth = lib.mkIf cfg.bluetooth.enable {
+      enable = true;
+      powerOnBoot = true;
+    };
+
+    services.blueman.enable = lib.mkIf cfg.bluetooth.enable true;
+
     warnings =
       if !cfg.suppressWarnings && cfg.useNh && config.liminalOS.flakeLocation == "" then
         [

modules/linux/desktop-environment/default.nix

@@ -26,5 +26,12 @@ in
     };
 
     programs.hyprland.enable = cfg.hyprland.enable;
+
+    services.xserver.enable = false;
+
+    services.xserver = {
+      xkb.layout = "us";
+      xkb.variant = "";
+    };
   };
 }

modules/linux/misc/default.nix

@@ -45,6 +45,11 @@ in
         Absolute filepath location of the NixOS system configuration flake.
       '';
     };
+    useEnUsLocale = lib.mkOption {
+      type = lib.types.bool;
+      default = true;
+      description = "Whether to use the en_US locale automatically";
+    };
   };
 
   config = {
@@ -80,5 +85,22 @@ in
         ]
       )
     );
+
+    # Select internationalisation properties.
+    i18n = lib.mkIf cfg.useEnUsLocale {
+      defaultLocale = "en_US.UTF-8";
+
+      extraLocaleSettings = {
+        LC_ADDRESS = "en_US.UTF-8";
+        LC_IDENTIFICATION = "en_US.UTF-8";
+        LC_MEASUREMENT = "en_US.UTF-8";
+        LC_MONETARY = "en_US.UTF-8";
+        LC_NAME = "en_US.UTF-8";
+        LC_NUMERIC = "en_US.UTF-8";
+        LC_PAPER = "en_US.UTF-8";
+        LC_TELEPHONE = "en_US.UTF-8";
+        LC_TIME = "en_US.UTF-8";
+      };
+    };
   };
 }

modules/linux/stylix/default.nix

@@ -11,6 +11,13 @@ in
 {
   options.liminalOS.theming = {
     enable = lib.mkEnableOption "theming";
+    plymouth.enable = lib.mkOption {
+      type = lib.types.bool;
+      default = cfg.enable;
+      description = ''
+        Whether to enable plymouth and sane defaults.
+      '';
+    };
   };
 
   imports = [
@@ -51,5 +58,26 @@ in
         size = 26;
       };
     };
+
+    boot = {
+      plymouth = {
+        enable = true;
+        font = "${config.stylix.fonts.monospace.package}/share/fonts/truetype/NerdFonts/CaskaydiaCove/CaskaydiaCoveNerdFontMono-Regular.ttf";
+      };
+
+      # Enable "Silent Boot"
+      consoleLogLevel = 3;
+      initrd.verbose = false;
+      kernelParams = [
+        "quiet"
+        "splash"
+        "boot.shell_on_fail"
+        "rd.systemd.show_status=false"
+        "rd.udev.log_level=3"
+        "udev.log_priority=3"
+      ];
+      initrd.systemd.enable = true;
+    };
+
   };
 }