Add awesome configuration

lib/nixos/modules/awesome.nix

@@ -1,9 +1,35 @@
-{ pkgs, ... }:
 {
-  environment.systemPackages = with pkgs; [ nitrogen ];
+  pkgs,
+  self,
+  username,
+  ...
+}:
+
+let
+  inherit (pkgs) writeShellScriptBin;
+
+  script-autostart = writeShellScriptBin "awesome-autostart" ''
+    set -o errexit
+
+    ${pkgs.nitrogen}/bin/nitrogen --set-zoom-fill --random "''${HOME}/Pictures/Wallpaper"
+  '';
+in
+{
+  environment.systemPackages = with pkgs; [
+    script-autostart
+
+    nitrogen
+  ];
 
   services.xserver.windowManager.awesome = {
     enable = true;
     noArgb = true;
   };
+
+  home-manager.users.${username} = {
+    xdg.configFile.awesome = {
+      source = "${self}/config/awesome";
+      recursive = true;
+    };
+  };
 }