games: Optimize configuration

hosts/puter/default.nix

@@ -26,7 +26,7 @@
     };
 
     tmp.useTmpfs = true;
-    kernelPackages = pkgs.linuxPackages_xanmod_latest;
+    kernelPackages = pkgs.unstable.linuxPackages_xanmod_latest;
     supportedFilesystems = [ "btfs" "vfat" "xfs" ];
     initrd = {
       availableKernelModules = [ "nvme" "xhci_pci" "ahci"

modules/nixos/hardware/gpu/nvidia/default.nix

@@ -1,4 +1,4 @@
-{ config, ... }:
+{ config, pkgs, ... }:
 
 {
   imports = [
@@ -19,7 +19,6 @@
 
   boot.kernelParams = [
     "nvidia_drm.fbdev=1"
-    "nvidia.NVreg_PreserveVideoMemoryAllocations=1"
   ];
 
   services.xserver.videoDrivers = [ "nvidia" ];

modules/nixos/multimedia/games/default.nix

@@ -1,25 +1,25 @@
 { pkgs, username, inputs, ... }:
 
 {
+  imports = [
+    ./steam.nix
+  ];
+
+  programs.gamescope.enable = true;
+  programs.gamemode.enable = true;
+  users.users."${username}".extraGroups = [ "gamemode" ];
+
+  nix.settings = inputs.aagl.nixConfig;
+  programs.anime-game-launcher.enable = true;
+
+  environment.systemPackages = with pkgs; [
+    unstable.osu-lazer-bin
+  ];
+  
   environment.persistence."/nix/persist" = {
     users."${username}".directories = [
-      ".local/share/steam_home"
       ".local/share/osu"
       ".local/share/an-anime-game-launcher"
     ];
   };
-
-  environment.systemPackages = with pkgs; [
-    protonup-qt
-    protontricks
-    unstable.osu-lazer-bin
-  ];
-
-  programs.steam = {
-    enable = true;
-    gamescopeSession.enable = true;
-  };
-
-  nix.settings = inputs.aagl.nixConfig;
-  programs.anime-game-launcher.enable = true;
 }

modules/nixos/multimedia/games/steam.nix

@@ -0,0 +1,26 @@
+{ pkgs, username, ... }:
+
+{
+  programs.steam = {
+    enable = true;
+    gamescopeSession.enable = true;
+  };
+  
+  environment.systemPackages = with pkgs; [
+    protonup-qt
+    protontricks
+  ];
+
+  # Sometimes a Steam game that runs natively on Linux
+  # creates a folder somewhere in ~/.local/share or ~/.config
+  # and in the usual case you would have to persist each game
+  # folder individually but since we set the nix home to this
+  # directory instead of the actual home directory, it all gets
+  # stored in here and by persisting the entire path this becomes
+  # a none issue.
+  environment.persistence."/nix/persist" = {
+    users."${username}".directories = [
+      ".local/share/steam_home"
+    ];
+  };
+}