refactor: change to litterate config

Configuration is now held by the `.org` files. All `.nix` files are
tangled from the org-mode files.

modules/home/base.nix

@@ -14,6 +14,7 @@ in {
         m.cli
         m.desktop
         m.dev
+        m.games
         m.media
         m.my-services
         m.security
@@ -32,6 +33,7 @@ in {
         cli.fullDesktop = mkDefault cfg.fullDesktop;
         desktop.fullDesktop = mkDefault cfg.fullDesktop;
         dev.fullDesktop = mkDefault cfg.fullDesktop;
+        games.fullDesktop = mkDefault cfg.fullDesktop;
         media.fullDesktop = mkDefault cfg.fullDesktop;
         security.fullDesktop = mkDefault cfg.fullDesktop;
         myServices.fullDesktop = mkDefault cfg.fullDesktop;

modules/home/desktop/caelestia.nix

@@ -1,6 +1,6 @@
 {inputs, ...}: {
   flake-file.inputs.caelestia-shell = {
-    url = "github:caelestia-dots/shell";
+    url = "github:caelestia-dots/shell?ref=stable";
     inputs.nixpkgs.follows = "nixpkgs";
   };
 

modules/home/games/games.nix

@@ -0,0 +1,23 @@
+{config, ...}: let
+  m = config.flake.modules.homeManager;
+in {
+  flake.modules.homeManager.games = {
+    config,
+    lib,
+    ...
+  }:
+    with lib; let
+      cfg = config.home.games;
+    in {
+      imports = [
+        m.mangohud
+        m.game-packages
+      ];
+
+      options.home.games.fullDesktop = mkEnableOption "Enable all optional game-related modules";
+      config.home.games = {
+        mangohud.enable = mkDefault cfg.fullDesktop;
+        game-packages.enable = mkDefault cfg.fullDesktop;
+      };
+    };
+}

modules/home/games/games.org

@@ -0,0 +1,46 @@
+#+title: Games
+#+setupfile: ../../headers
+
+* Games
+A small category to group everything gaming-related: performance
+overlays, launchers, and whatever else I add to it later. Here’s the
+skeleton of the =homeManager.games= module.
+#+begin_src nix :tangle yes
+{config, ...}: let
+  m = config.flake.modules.homeManager;
+in {
+  flake.modules.homeManager.games = {
+    config,
+    lib,
+    ...
+  }:
+    with lib; let
+      cfg = config.home.games;
+    in {
+      imports = [
+        m.mangohud
+        m.game-packages
+      ];
+
+      <<fulldesktop-option>>
+      <<fulldesktop-cascade>>
+    };
+}
+#+end_src
+
+** The =fullDesktop= Toggle
+Like my other categories, =fullDesktop= is the one switch that turns
+everything in this category on by default, while still letting a host
+override one specific piece if it wants to.
+#+name: fulldesktop-option
+#+begin_src nix
+options.home.games.fullDesktop = mkEnableOption "Enable all optional game-related modules";
+#+end_src
+
+#+name: fulldesktop-cascade
+#+begin_src nix
+config.home.games = {
+  mangohud.enable = mkDefault cfg.fullDesktop;
+  game-packages.enable = mkDefault cfg.fullDesktop;
+};
+#+end_src

modules/home/games/mangohud.nix

@@ -0,0 +1,16 @@
+{
+  flake.modules.homeManager.mangohud = {
+    lib,
+    config,
+    ...
+  }:
+    with lib; let
+      cfg = config.home.games.mangohud;
+    in {
+      options.home.games.mangohud.enable = mkEnableOption "Enable MangoHud performance overlay";
+      config.programs.mangohud = mkIf cfg.enable {
+        enable = true;
+        enableSessionWide = true;
+      };
+    };
+}

modules/home/games/mangohud.org

@@ -0,0 +1,39 @@
+#+title: MangoHud
+#+setupfile: ../../headers
+
+* MangoHud
+[[https://github.com/flightlessmango/MangoHud][MangoHud]] is the performance overlay I use to keep an eye on FPS, frame
+time and GPU/CPU usage while gaming. Here’s the =homeManager.mangohud=
+module.
+#+begin_src nix :tangle yes
+{
+  flake.modules.homeManager.mangohud = {
+    lib,
+    config,
+    ...
+  }:
+    with lib; let
+      cfg = config.home.games.mangohud;
+    in {
+      <<options>>
+      <<config>>
+    };
+}
+#+end_src
+
+** Declaring the Option
+#+name: options
+#+begin_src nix
+options.home.games.mangohud.enable = mkEnableOption "Enable MangoHud performance overlay";
+#+end_src
+
+** Enabling It Session-Wide
+=enableSessionWide= turns MangoHud on for my whole session. It
+auto-launches for any game or app that supports it.
+#+name: config
+#+begin_src nix
+config.programs.mangohud = mkIf cfg.enable {
+  enable = true;
+  enableSessionWide = true;
+};
+#+end_src

modules/home/games/packages.nix

@@ -0,0 +1,21 @@
+{
+  flake.modules.homeManager.game-packages = {
+    pkgs,
+    lib,
+    config,
+    ...
+  }:
+    with lib; let
+      cfg = config.home.games.game-packages;
+    in {
+      options.home.games.game-packages.enable = mkEnableOption "Install game launchers and clients";
+      config.home.packages = mkIf cfg.enable (with pkgs; [
+        atlauncher
+        heroic
+        openmw
+        openttd-jgrpp
+        moonlight-qt
+        vintagestory
+      ]);
+    };
+}

modules/home/games/packages.org

@@ -0,0 +1,51 @@
+#+title: Game Launchers
+#+setupfile: ../../headers
+
+* Game Launchers
+The actual game launchers and clients I use, kept separate from my
+catch-all package list so they only show up on hosts that actually
+want them. Here’s the =homeManager.game-packages= module.
+#+begin_src nix :tangle yes
+{
+  flake.modules.homeManager.game-packages = {
+    pkgs,
+    lib,
+    config,
+    ...
+  }:
+    with lib; let
+      cfg = config.home.games.game-packages;
+    in {
+      <<options>>
+      <<config>>
+    };
+}
+#+end_src
+
+** Declaring the Option
+#+name: options
+#+begin_src nix
+options.home.games.game-packages.enable = mkEnableOption "Install game launchers and clients";
+#+end_src
+
+** The Packages
+=atlauncher= and =heroic= are launchers for Minecraft and for
+Epic/GOG/Amazon respectively. =openmw= is an open-source
+reimplementation of Morrowind’s engine. It makes the experience a lot
+more enjoyable, especially on a 2K 21:9 screen like the one I use on
+my main computer. =openttd-jgrpp= is OpenTTD with the JGR patchpack.
+=moonlight-qt= lets me stream from my gaming machine to another one on
+the network (mostly via Tailscale). Lastly, =vintagestory= is, well,
+Vintage Story, and where all my free time has been disappearing into
+since early 2026.
+#+name: config
+#+begin_src nix
+config.home.packages = mkIf cfg.enable (with pkgs; [
+  atlauncher
+  heroic
+  openmw
+  openttd-jgrpp
+  moonlight-qt
+  vintagestory
+]);
+#+end_src

modules/home/phundrak/hosts/marpa.nix

@@ -1,7 +1,7 @@
 {config, ...}: let
   m = config.flake.modules.homeManager;
 in {
-  flake.modules.homeManager."phundrak-marpa" = {config, ...}: {
+  flake.modules.homeManager."phundrak-marpa" = {config, pkgs, ...}: {
     imports = [m.phundrak];
 
     home = {
@@ -11,6 +11,9 @@ in {
       dev.ai = {
         enable = true;
         ollama.gpu = "rocm";
+        mcpServers = {
+          nix.command = "${pkgs.mcp-nixos}/bin/mcp-nixos";
+        };
       };
       desktop = {
         hyprland.host = "marpa";

modules/home/phundrak/phundrak-packages.nix

@@ -56,13 +56,6 @@
         watchmate
         chatterino7
 
-        # Games
-        atlauncher
-        heroic
-        openmw
-        openttd-jgrpp
-        moonlight-qt
-
         # Gnome stuff
         gnomeExtensions.tray-icons-reloaded
         gthumb