update cross-module package references, nuke execOnStart

modules/desktop/default.nix

@@ -9,11 +9,6 @@ in {
       type = types.nullOr (types.enum ["x11" "wayland"]);
       description = "What display protocol to use";
     };
-    execOnStart = mkOption {
-      type = types.listOf types.str;
-      description = "List of commands to run on startup";
-      default = null;
-    };
   };
 
   config = mkMerge [
@@ -57,9 +52,18 @@ in {
         SDL_VIDEODRIVER = "wayland";
         CLUTTER_BACKEND = "wayland";
       };
+
+      hm.home.packages = with pkgs; [
+        wl-clipboard
+        wl-clipboard-x11 # compat with xclip
+      ];
     })
     (mkIf (cfg.envProto == "x11") {
       services.xserver.excludePackages = [ pkgs.xterm ];
+
+      hm.home.packages = with pkgs; [
+        xclip
+      ];
     })
   ];
 }