refactor!: restructure and document configuration

shared/home-manager/gaming.nix

@@ -0,0 +1,28 @@
+{ pkgs, ... }:
+
+{
+
+  home.file = {
+    # Configuration for gamemode, for running games with optimizations.
+    ".config/gamemode.ini".source = ./dotfiles/gamemode.ini;
+
+    # Configure DXVK
+    ".config/dxvk.conf".text = ''
+      dxvk.enableGraphicsPipelineLibrary = Auto
+    '';
+  };
+
+  home.packages = with pkgs; [
+    gamescope
+    heroic
+    protontricks
+    wineWowPackages.unstableFull
+    winetricks
+
+    # Games
+    openttd
+    prismlauncher
+    shattered-pixel-dungeon
+    xonotic
+  ];
+}