i got bored, so i am trying out niri on my steam deck slowly but surely. It is more than likely i will go back to kde but it is worth a go.

base/patio/configuration.nix

@@ -2,7 +2,7 @@
 # your system.  Help is available in the configuration.nix(5) man page
 # and in the NixOS manual (accessible by running ‘nixos-help’).
 
-{ config, pkgs, lib, ... }:
+{ config, pkgs, lib, inputs, ... }:
 
 {
   imports =
@@ -33,7 +33,7 @@
   jovian.steam.autoStart = true;
   jovian.steam.enable = true;
   jovian.steam.user = "alyx";
-  jovian.steam.desktopSession = "plasma";
+  jovian.steam.desktopSession = "niri";
   jovian.devices.steamdeck.autoUpdate = true;
   jovian.decky-loader.enable = true;
 
@@ -42,6 +42,10 @@
   security.sudo.package = pkgs.sudo.override { withInsults = true; };
 
   programs = {
+    niri = {
+      enable = true;
+      package = inputs.niri.packages.${pkgs.stdenv.hostPlatform.system}.niri-unstable;
+    };
     adb.enable = true;
     flashrom.enable = true;
     nix-ld.enable = true;
@@ -166,6 +170,7 @@
     cbfstool
     git
     keepassxc
+    inputs.niri.packages.${pkgs.stdenv.hostPlatform.system}.xwayland-satellite-stable
     pulseaudio
     steamdeck-firmware
     jupiter-dock-updater-bin

base/patio/configuration.nix.save.1

@@ -0,0 +1,187 @@
+# Edit this configuration file to define what should be installed on
+# your system.  Help is available in the configuration.nix(5) man page
+# and in the NixOS manual (accessible by running ‘nixos-help’).
+
+{ config, pkgs, lib, ... }:
+
+{
+  imports =
+    [ # Include the results of the hardware scan.
+      ./hardware-configuration.nix
+    ];
+
+  nix.package = pkgs.lix;  
+  nix.buildMachines = [ {
+	 hostName = "alyx@192.168.1.146";
+	 system = "x86_64-linux";
+         protocol = "ssh-ng";
+	 # if the builder supports building for multiple architectures, 
+	 # replace the previous line by, e.g.
+	 # systems = ["x86_64-linux" "aarch64-linux"];
+	 maxJobs = 1;
+	 speedFactor = 2;
+	 supportedFeatures = [ "nixos-test" "benchmark" "big-parallel" "kvm" ];
+	 mandatoryFeatures = [ ];
+	}] ;
+	nix.distributedBuilds = true;
+	# optional, useful when the builder has a faster internet connection than yours
+	nix.extraOptions = ''
+	  builders-use-substitutes = true
+	'';
+  services.desktopManager.plasma6.enable = true;
+  jovian.devices.steamdeck.enable = true;
+  jovian.steam.autoStart = true;
+  jovian.steam.enable = true;
+  jovian.steam.user = "alyx";
+  jovian.steam.desktopSession = "plasma";
+  jovian.devices.steamdeck.autoUpdate = true;
+  jovian.decky-loader.enable = true;
+
+  environment.pathsToLink = [ "/share/xdg-desktop-portal" ];
+
+  security.sudo.package = pkgs.sudo.override { withInsults = true; };
+
+  programs = {
+    niri.enable = true;
+    niri.package = 
+    adb.enable = true;
+    flashrom.enable = true;
+    nix-ld.enable = true;
+    nix-ld.libraries = with pkgs; [xorg.libxcb libao xorg.libX11 libusb1 cargo rustc pkg-config cacert];
+  };
+
+  services.journald.extraConfig = ''
+        SystemMaxUse=2G
+  '';
+
+  services.tailscale = {
+    enable = true;
+    useRoutingFeatures = "both";
+  };
+  
+  boot.supportedFilesystems = ["exfat" "ntfs" "xfs"];
+  boot.loader.systemd-boot.enable = true;
+  boot.loader.efi.canTouchEfiVariables = true;
+  boot.initrd.systemd.enable = true;
+  boot.initrd.kernelModules = [ "amdgpu" ];
+  boot.loader.efi.efiSysMountPoint = "/boot/";
+
+  networking.hostName = "patio"; # Define your hostname.
+
+  powerManagement.cpuFreqGovernor = "performance";
+
+  # 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
+  hardware.graphics = {
+    enable = true;
+    enable32Bit = true;
+    extraPackages = with pkgs; [mesa.opencl libvdpau-va-gl vaapiVdpau vulkan-validation-layers];
+    extraPackages32 = with pkgs; [driversi686Linux.amdvlk driversi686Linux.mesa.opencl];
+  };
+
+  hardware.bluetooth.enable = true;
+  services.blueman.enable = true;
+
+  networking.networkmanager = {
+    enable = true;
+    wifi.backend = "iwd";
+  };
+
+    # Set your time zone.
+  time.timeZone = "Europe/London";
+
+  # Select internationalisation properties.
+  i18n.defaultLocale = "en_GB.UTF-8";
+
+  services.udisks2.enable = true;
+
+  i18n.extraLocaleSettings = {
+    LC_ADDRESS = "en_GB.UTF-8";
+    LC_IDENTIFICATION = "en_GB.UTF-8";
+    LC_MEASUREMENT = "en_GB.UTF-8";
+    LC_MONETARY = "en_GB.UTF-8";
+    LC_NAME = "en_GB.UTF-8";
+    LC_NUMERIC = "en_GB.UTF-8";
+    LC_PAPER = "en_GB.UTF-8";
+    LC_TELEPHONE = "en_GB.UTF-8";
+    LC_TIME = "en_GB.UTF-8";
+  };
+
+  nix.settings.experimental-features = [ "nix-command" "flakes" ];
+
+  nix.gc = {
+    automatic = true;
+    dates = "weekly";
+    options = "--delete-older-than 30d";
+  };
+
+  # Enable the X11 windowing system.
+  services.xserver.enable = true;
+  programs.dconf.enable = true;
+
+  # Configure keymap in X11
+  services.xserver.xkb = {
+    layout = "us";
+    variant = "";
+  };
+
+  # Enable CUPS to print documents.
+  services.printing.enable = true;
+  services.printing.drivers = [pkgs.gutenprint];
+
+  security = {
+    rtkit.enable = true;
+  };
+
+  # Enable sound with pipewire.
+  services.pulseaudio.enable = false;
+  services.pipewire = {
+    enable = true;
+    alsa.enable = true;
+    alsa.support32Bit = true;
+    pulse.enable = true;
+    # If you want to use JACK applications, uncomment this
+    jack.enable = true;
+  };
+
+  # Define a user account. Don't forget to set a password with ‘passwd’.
+  
+  users.users.alyx = {
+    isNormalUser = true;
+    description = "Alyx";
+    extraGroups = [ "networkmanager" "wheel" "camera" ];
+    packages = with pkgs; [
+    ];
+  };
+
+  services.libinput.enable = true;
+
+  # Allow unfree packages
+  nixpkgs.config.allowUnfree = true;
+
+  environment.systemPackages = with pkgs; [
+    wget
+    neovim
+    cbfstool
+    git
+    keepassxc
+    pulseaudio
+    steamdeck-firmware
+    jupiter-dock-updater-bin
+    maliit-keyboard
+    squeekboard
+    wvkbd
+    winetricks
+    p7zip
+    cabextract
+    unzip
+    wineWowPackages.stable
+    (pkgs.python3.withPackages (ps: with ps; [tkinter]))
+  ];
+
+  system.stateVersion = "24.11"; # Did you read the comment?
+
+}

flake.nix

@@ -175,6 +175,7 @@
     };
     nixosConfigurations."patio" = nixpkgs.lib.nixosSystem {
       system = "x86_64-linux";
+      specialArgs = { inherit inputs; };
       modules = [
         ./base/patio
         nixpkgs-xr.nixosModules.nixpkgs-xr

home/default.nix

@@ -32,13 +32,13 @@
   };
 
   programs.ncmpcpp = {
-    enable = (vars.class != "handheld");
+    enable = true;
     settings = {
       tags_separator = ";";
     };
   };
   services.mpd = {
-    enable = (vars.class != "handheld");
+    enable = true;
     musicDirectory = "/home/${vars.user}/Music";
     extraConfig = ''
       audio_output {
@@ -48,7 +48,7 @@
     '';
   };
   services.mpd-mpris = {
-    enable = (vars.class != "handheld");
+    enable = true;
   };
 
   services.mpd-discord-rpc.enable = true;
@@ -56,7 +56,7 @@
   services.syncthing.enable = (vars.useSyncthing);
 
   programs.waybar = {
-    enable = (vars.class != "handheld");
+    enable = true;
   };
   programs.git = {
     enable = true;
@@ -104,6 +104,12 @@
           { criteria = "Valve Corporation Index HMD 0xEDE55842"; status = "disable"; }
 	];
       }
+      {
+        profile.name = "steamdeck";
+        profile.outputs = [
+          { criteria = "Valve Corporation ANX7530 U 0x00000001"; transform = "270"; }
+        ];
+      }
     ];
   };