refactor: project repo changes

.mcp.json

@@ -1,7 +1,8 @@
 {
   "mcpServers": {
     "nixos": {
-      "command": "uvx",
+      "type": "stdio",
+      "command": "/etc/profiles/per-user/rasyidanakbar/bin/uvx",
       "args": ["mcp-nixos"]
     }
   }

devshells/README.md

@@ -13,6 +13,14 @@ Basic shell with git and nixfmt for dotfiles development.
 nix develop        # or: nix develop .#default
 ```
 
+**Includes:**
+- Git
+- nixfmt-classic
+- uv (for `uvx` commands)
+
+**MCP helper:**
+- `mcp-nixos` alias pins UV caches to `.cache/` so `uvx mcp-nixos` works without extra setup; useful before launching Codex.
+
 ### `python-uv`
 Python development with UV package manager.
 

devshells/default.nix

@@ -2,8 +2,25 @@
 
 pkgs.mkShell {
   name = "default";
-  packages = with pkgs; [ git nixfmt-classic ];
+  packages = with pkgs; [
+    git
+    nixfmt-classic
+    uv
+  ];
   shellHook = ''
+    export DOTFILES_ROOT="$PWD"
+    export XDG_CACHE_HOME="$DOTFILES_ROOT/.cache"
+    export UV_CACHE_DIR="$XDG_CACHE_HOME/uv"
+    export UV_TOOL_HOME="$XDG_CACHE_HOME/uv-tools"
+    export XDG_DATA_HOME="$DOTFILES_ROOT/.cache/xdg-data"
+    export UV_PYTHON_DOWNLOADS=never
+    export MCP_CONFIG_PATH="$DOTFILES_ROOT/.mcp.json"
+
+    mkdir -p "$XDG_CACHE_HOME" "$UV_CACHE_DIR" "$UV_TOOL_HOME" "$XDG_DATA_HOME"
+
+    alias mcp-nixos='XDG_CACHE_HOME="$XDG_CACHE_HOME" XDG_DATA_HOME="$XDG_DATA_HOME" UV_CACHE_DIR="$UV_CACHE_DIR" UV_TOOL_HOME="$UV_TOOL_HOME" UV_PYTHON_DOWNLOADS="$UV_PYTHON_DOWNLOADS" uvx mcp-nixos'
+
     echo "Loaded default shell for dotfiles development"
+    echo "MCP helper alias ready: mcp-nixos"
   '';
 }

flake.nix

@@ -51,7 +51,7 @@
       user = "rasyidanakbar";
 
       mkDarwin = { system ? "aarch64-darwin", extraModules ? [ ]
-        , homeFile ? ./modules/home/rsydn/base.nix }:
+        , homeFile ? ./modules/darwin/home/default.nix }:
         let pkgs = mkPkgs system;
         in darwin.lib.darwinSystem {
           inherit system pkgs;

modules/darwin/home/default.nix

@@ -0,0 +1,8 @@
+{ config, pkgs, lib, ... }: {
+  # Import shared cross-platform home configuration
+  imports = [
+    ../../home/rsydn/base.nix
+    ./programs/aerospace
+    ./programs/ghostty.nix
+  ];
+}

modules/home/rsydn/base.nix

@@ -2,10 +2,8 @@
   home.stateVersion = "24.05";
 
   imports = [
-    ./programs/aerospace
     ./programs/helix.nix
     ./programs/neovim.nix
-    ./programs/ghostty.nix
     ./shell/nushell.nix
     ./shell/tmux.nix
     ./devtools/ai-tools.nix