init

home/programs/games/default.nix

@@ -0,0 +1,9 @@
+{pkgs, ...}: {
+  home.packages = with pkgs; [
+    heroic
+    lutris
+    prismlauncher
+    gamescope
+  ];
+  programs.mangohud.enable = true;
+}

home/programs/games/steam.nix

@@ -0,0 +1,31 @@
+{
+  pkgs,
+  inputs,
+  ...
+}: let
+  steam-with-pkgs = pkgs.steam.override {
+    extraPkgs = pkgs:
+      with pkgs; [
+        xorg.libXcursor
+        xorg.libXi
+        xorg.libXinerama
+        xorg.libXScrnSaver
+        libpng
+        libpulseaudio
+        libvorbis
+        stdenv.cc.cc.lib
+        libkrb5
+        keyutils
+        gamescope
+        gamemode
+        mangohud
+      ];
+    extraProfile = "export STEAM_EXTRA_COMPAT_TOOLS_PATHS='${inputs.nix-gaming.packages.${pkgs.system}.proton-ge}'";
+  };
+in {
+  home.packages = with pkgs; [
+    steam-with-pkgs
+    steam-run
+    protontricks
+  ];
+}