Add initial support for Steam Deck

flake.nix

@@ -67,6 +67,12 @@
 	  nixos-mailserver.nixosModule
         ];
       };
+      JimDeck = nixpkgs.lib.nixosSystem {
+        specialArgs = {inherit inputs outputs;};
+        modules = [
+          ./nixos/deck.nix
+        ];
+      };
     };
 
     # Standalone home-manager configuration entrypoint
@@ -87,6 +93,13 @@
           ./home-manager/jimbo_server.nix
         ];
       };
+      "jimbo@JimDeck" = home-manager.lib.homeManagerConfiguration {
+        pkgs = nixpkgs.legacyPackages.x86_64-linux;
+        extraSpecialArgs = {inherit inputs outputs;};
+        modules = [
+          ./home-manager/jimbo_server.nix
+        ];
+      };
       # Derivation for ssh envrionments on other people's servers
       "jimbo@SSH" = home-manager.lib.homeManagerConfiguration {
         pkgs = nixpkgs.legacyPackages.x86_64-linux;

nixos/deck.nix

@@ -0,0 +1,37 @@
+{
+  imports = [
+    # Base configs
+    ./base.nix
+
+    # Import users and groups
+    ./users/jimbo.nix
+    ./users/groups.nix
+
+    # Desktop only
+    ./desktop/misc.nix
+    ./desktop/sway.nix
+    ./desktop/gaming.nix
+    ./desktop/pipewire.nix
+    ./desktop/bluetooth.nix
+    ./desktop/firewall.nix
+    ./desktop/fonts.nix
+    ./desktop/qt.nix
+
+    # Steam Deck only
+    ./deck/jovian.nix
+
+    # Modules
+    ./modules/security.nix
+
+    # Hardware
+    ./hardware/machines/deck.nix
+    ./hardware/systemdboot.nix
+    ./hardware/opengl.nix
+
+    # Services
+    ./services/openssh.nix
+    ./services/mpd.nix
+  ];
+
+  networking.hostName = "JimDesktop";
+}

nixos/deck/greetd-steam.nix

@@ -0,0 +1,19 @@
+{pkgs, ...}: {
+  services = {
+    # Configure greetd for "auto" login (single user only)
+    greetd = {
+      enable = true;
+      restart = true;
+      settings = {
+        terminal = {
+          vt = 2;
+          switch = true;
+        };
+        default_session = {
+          command = "start-gamescope-session";
+          user = "jimbo";
+        };
+      };
+    };
+  };
+}

nixos/deck/jovian.nix

@@ -0,0 +1,15 @@
+{
+  imports = [
+    ./greetd-steam.nix
+  ];
+
+  jovian = {
+    steam = {
+      enable = true;
+      desktopSession = "sway";
+    };
+    decky-loader.enable = true;
+    devices.steamdeck.enable = true;
+    steamos.useSteamOSConfig = true;
+  };
+}

nixos/desktop.nix

@@ -10,6 +10,7 @@
     # Desktop only
     ./desktop/misc.nix
     ./desktop/sway.nix
+    ./desktop/greetd-sway.nix
     ./desktop/printing.nix
     ./desktop/gaming.nix
     ./desktop/pipewire.nix

nixos/desktop/greetd-sway.nix

@@ -0,0 +1,39 @@
+{pkgs, ...}: {
+  services = {
+    # Configure greetd for "auto" login (single user only)
+    greetd = let
+      startSway = pkgs.writeScript "startsway" ''
+        # Use NVIDIA variables if drivers are in use
+        if lspci -k | grep "Kernel driver in use: nvidia" &> /dev/null; then
+          # NVIDIA/AMD variables
+          export LIBVA_DRIVER_NAME=nvidia
+          export GBM_BACKEND=nvidia-drm
+          export __GLX_VENDOR_LIBRARY_NAME=nvidia
+          export WLR_NO_HARDWARE_CURSORS=1
+        else
+          :
+        fi
+
+        # Sway/Wayland
+        export XDG_CURRENT_DESKTOP=sway
+        export QT_QPA_PLATFORM="wayland;xcb"
+
+        # Start Sway
+        sway --unsupported-gpu
+      '';
+    in {
+      enable = true;
+      restart = true;
+      settings = {
+        terminal = {
+          vt = 2;
+          switch = true;
+        };
+        default_session = {
+          command = "${startSway}";
+          user = "jimbo";
+        };
+      };
+    };
+  };
+}

nixos/desktop/wayland.nix

@@ -1,54 +1,12 @@
 {pkgs, ...}: {
-  services = {
-    # Configure greetd for "auto" login (single user only)
-    greetd = let
-      startSway = pkgs.writeScript "startsway" ''
-        # Use NVIDIA variables if drivers are in use
-        if lspci -k | grep "Kernel driver in use: nvidia" &> /dev/null; then
-          # NVIDIA/AMD variables
-          export LIBVA_DRIVER_NAME=nvidia
-          export GBM_BACKEND=nvidia-drm
-          export __GLX_VENDOR_LIBRARY_NAME=nvidia
-          export WLR_NO_HARDWARE_CURSORS=1
-        else
-          :
-        fi
-
-        # Sway/Wayland
-        export XDG_CURRENT_DESKTOP=sway
-        export QT_QPA_PLATFORM="wayland;xcb"
-
-        # Start Sway
-        sway --unsupported-gpu
-      '';
-    in {
-      enable = true;
-      restart = true;
-      settings = {
-        terminal = {
-          vt = 2;
-          switch = true;
-        };
-        default_session = {
-          command = "${startSway}";
-          user = "jimbo";
-        };
-      };
-    };
-    dbus.enable = true;
-  };
-
-  programs.xwayland = {
-    enable = true;
-  };
-
-  # Enable backlight and theme control
   programs = {
     dconf.enable = true;
     light.enable = true;
+    xwayland.enable = true;
   };
 
-  # Packages needed for Wayland
+  services.dbus.enable = true;
+
   environment.systemPackages = with pkgs; [
     wl-clipboard
     wdisplays