Fix worktop app location and add postbird

nix/system/worktop/darwin-configuration.nix

@@ -13,7 +13,6 @@ let
     pkgs.callPackage ./makeApp.nix rec {
       name = "VLC";
       version = "3.0.18";
-      sourceRoot = "${name}.app";
       src = pkgs.fetchurl {
         url = "https://get.videolan.org/vlc/3.0.18/macosx/vlc-${version}-arm64.dmg";
         sha256 = "0iwgcrwcfyw0r41kjx4hx1sy37mzx5q8nlbzh58gs8ajpjymkhlr";
@@ -39,6 +38,16 @@ let
         sha256 = "54794fbf4b29c9a56f6e8a736ff5445c75a1fd3cf49dce7b4d7aa6ff067ae2ef";
       };
     };
+
+  postbird =
+    pkgs.callPackage ./makeApp.nix rec {
+      name = "Postbird";
+      version = "0.8.4";
+      src = pkgs.fetchurl {
+        url = "https://github.com/Paxa/postbird/releases/download/${version}/Postbird-${version}.dmg";
+        sha256 = "1gk7gk3c38rwagx535nl9p0r8drpxfijdiv20qdv7yj81h79db6r";
+      };
+    };
 in
 {
   imports = [ <home-manager/nix-darwin> ];
@@ -59,6 +68,7 @@ in
       vlc
       keycastr
       discord
+      postbird
 
       # wishlist
       # todo (unsupported on aarch64-darwin):
@@ -89,11 +99,19 @@ in
   # by nix-darwin
   system.activationScripts.applications.text = pkgs.lib.mkForce (
     ''
-      rm -rf ~/Applications/Nix\ Apps
-      mkdir -p ~/Applications/Nix\ Apps
+      userDir="/Users/haak/Applications/Nix Apps"
+      echo "setting up $userDir"
+      rm -rf $userDir
+      mkdir -p $userDir
+      chown haak $userDir
       for app in $(find ${config.system.build.applications}/Applications -maxdepth 1 -type l); do
         src="$(/usr/bin/stat -f%Y "$app")"
-        cp -r "$src" ~/Applications/Nix\ Apps
+        dst="$userDir/$(basename $src)"
+        echo "app: $app, src: $src, dst: $dst"
+        if [[ ! -e $dst ]]; then
+          echo "Linking $app"
+          ln -s "$app" "$dst"
+        fi
       done
     ''
   );