enable steamdeck stuffs

hosts/deck/configuration.nix

@@ -2,7 +2,7 @@
 # your system. Help is available in the configuration.nix(5) man page, on
 # https://search.nixos.org/options and in the NixOS manual (`nixos-help`).
 
-{ config, lib, pkgs, ... }:
+{ lib, pkgs, ... }:
 
 {
   imports =
@@ -15,14 +15,43 @@
   boot.loader.efi.canTouchEfiVariables = true;
 
   nixpkgs.config.allowUnfree = true;
+  # Enable nix flakes and nix-command tools
+  nix = {
+    settings = {
+      warn-dirty = lib.mkForce false;
+      experimental-features = lib.mkForce [
+        "nix-command"
+        "flakes"
+      ];
+    };
+
+    # Garbage collect automatically every week
+    gc.automatic = lib.mkDefault true;
+    gc.options = lib.mkDefault "--delete-older-than 30d";
+
+    optimise.automatic = lib.mkDefault true;
+  };
 
   jovian = {
     steam = {
       enable = true;
       autoStart = true;
       user = "deck";
-      # desktopSession = "plasma5";
+      desktopSession = "plasma6";
     };
+
+    steamos = {
+      useSteamOSConfig = true;
+    };
+
+    devices = {
+      steamdeck = {
+        enable = true;
+        enableGyroDsuService = true; # If enabled, motion data from the gyroscope can be used in Cemu with Cemuhoo
+      };
+    };
+
+    hardware.has.amd.gpu = true;
   };
 
   # networking.hostName = "nixos"; # Define your hostname.
@@ -52,6 +81,10 @@
   services.xserver.displayManager.sddm.enable = false;
   services.xserver.desktopManager.plasma5.enable = false;
   
+  services.desktopManager.plasma6 = {
+    enable = true;
+    enableQt5Integration = true;
+  };
 
   # Configure keymap in X11
   # services.xserver.xkb.layout = "us";

hosts/deck/hardware-configuration.nix

@@ -1,60 +1,98 @@
 # Do not modify this file!  It was generated by ‘nixos-generate-config’
 # and may be overwritten by future invocations.  Please make changes
 # to /etc/nixos/configuration.nix instead.
-{ config, lib, pkgs, modulesPath, ... }:
+{
+  config,
+  lib,
+  modulesPath,
+  ...
+}:
 
 {
-  imports =
+  imports = [
-    [ (modulesPath + "/installer/scan/not-detected.nix")
+    (modulesPath + "/installer/scan/not-detected.nix")
   ];
 
-  boot.initrd.availableKernelModules = [ "nvme" "xhci_pci" "usbhid" "usb_storage" "uas" "sd_mod" "sdhci_pci" ];
+  boot.initrd.availableKernelModules = [
+    "nvme"
+    "xhci_pci"
+    "usbhid"
+    "usb_storage"
+    "uas"
+    "sd_mod"
+    "sdhci_pci"
+  ];
   boot.initrd.kernelModules = [ ];
   boot.kernelModules = [ "kvm-amd" ];
   boot.extraModulePackages = [ ];
 
-  fileSystems."/" =
+  fileSystems."/" = {
-    { device = "none";
+    device = "none";
     fsType = "tmpfs";
   };
 
-  fileSystems."/boot" =
+  fileSystems."/boot" = {
-    { device = "/dev/disk/by-uuid/A06F-3014";
+    device = "/dev/disk/by-uuid/A06F-3014";
     fsType = "vfat";
   };
 
-  fileSystems."/nix" =
+  fileSystems."/nix" = {
-    { device = "/dev/disk/by-uuid/4dd9fe16-dec7-48da-80af-de2c603a136a";
+    device = "/dev/disk/by-uuid/4dd9fe16-dec7-48da-80af-de2c603a136a";
     fsType = "btrfs";
-      options = [ "subvol=nix" ];
+    options = [
+      "subvol=nix"
+      "compress=zstd"
+      "noatime"
+      "autodefrag"
+    ];
   };
 
-  fileSystems."/etc" =
+  fileSystems."/etc" = {
-    { device = "/dev/disk/by-uuid/4dd9fe16-dec7-48da-80af-de2c603a136a";
+    device = "/dev/disk/by-uuid/4dd9fe16-dec7-48da-80af-de2c603a136a";
     fsType = "btrfs";
-      options = [ "subvol=etc" ];
+    options = [
+      "subvol=etc"
+      "compress=zstd"
+      "noatime"
+      "autodefrag"
+    ];
   };
 
-  fileSystems."/root" =
+  fileSystems."/root" = {
-    { device = "/dev/disk/by-uuid/4dd9fe16-dec7-48da-80af-de2c603a136a";
+    device = "/dev/disk/by-uuid/4dd9fe16-dec7-48da-80af-de2c603a136a";
     fsType = "btrfs";
-      options = [ "subvol=root" ];
+    options = [
+      "subvol=root"
+      "compress=zstd"
+      "noatime"
+      "autodefrag"
+    ];
   };
 
-  fileSystems."/var/log" =
+  fileSystems."/var/log" = {
-    { device = "/dev/disk/by-uuid/4dd9fe16-dec7-48da-80af-de2c603a136a";
+    device = "/dev/disk/by-uuid/4dd9fe16-dec7-48da-80af-de2c603a136a";
     fsType = "btrfs";
-      options = [ "subvol=log" ];
+    options = [
+      "subvol=log"
+      "compress=zstd"
+      "noatime"
+      "autodefrag"
+    ];
   };
 
-  fileSystems."/home" =
+  fileSystems."/home" = {
-    { device = "/dev/disk/by-uuid/4dd9fe16-dec7-48da-80af-de2c603a136a";
+    device = "/dev/disk/by-uuid/4dd9fe16-dec7-48da-80af-de2c603a136a";
     fsType = "btrfs";
-      options = [ "subvol=home" ];
+    options = [
+      "subvol=home"
+      "compress=zstd"
+      "noatime"
+      "autodefrag"
+    ];
   };
 
-  swapDevices =
+  swapDevices = [
-    [ { device = "/dev/disk/by-uuid/da9dfb00-c2ac-4105-a75f-f498973a32f0"; }
+    { device = "/dev/disk/by-uuid/da9dfb00-c2ac-4105-a75f-f498973a32f0"; }
   ];
 
   # Enables DHCP on each ethernet and wireless interface. In case of scripted networking

hosts/deck/home.nix

@@ -1,4 +1,4 @@
-{ lib, pkgs, ... }:
+{ ... }:
 let
   shellAliases = {
     ll = "ls -alh";