Put launchpad in dock

darwin.nix

@@ -1,6 +1,7 @@
 { system, pkgs, pkgs-unsupported, nixpkgs-flake, ... }:
 
 let prismlauncher = pkgs-unsupported.prismlauncher.override { jdks = [ pkgs.jdk8 pkgs.jdk21 ]; };
+    fileicon = import ./fileicon.nix { inherit pkgs; };
 in
 {
   # TODO: nix options should be joint for darwin and nix-os
@@ -120,6 +121,7 @@ in
 
   system.defaults.dock.persistent-apps = [
     # Finder? LaunchPad?
+    "/System/Applications/Launchpad.app/"
     "${pkgs.keepassxc}/Applications/KeePassXC.app"
     "/System/Applications/Calendar.app/"
     "/System/Applications/Mail.app/"
@@ -133,12 +135,18 @@ in
     "/Applications/krita.app/"
     "${pkgs.inkscape}/Applications/Inkscape.app/"
     "/Users/xenia/Applications/Home Manager Apps/Alacritty.app"
+    "/Applications/"
+    "/Applications/Nix Apps/"
   ];
 
-  # Set desktop background
   system.activationScripts.extraActivation.text = ''
+    echo "Setting background image..."
     osascript -e "tell application \"System Events\" to tell every desktop to set picture to \"${./backgrounds/enby-mac.png}\" as POSIX file"
   '';
+  system.activationScripts.postActivation.text = ''
+    echo "Setting nix-apps folder icon..."
+    ${fileicon}/bin/fileicon set '/Applications/Nix Apps/' ${./nix-apps-folder.png}
+  '';
 
   system.defaults.menuExtraClock = {
     ShowSeconds = true;

fileicon.nix

@@ -0,0 +1,23 @@
+{ pkgs }:
+let
+    name = "fileicon";
+    version = "v0.3.4";
+    src = pkgs.fetchFromGitHub {
+      owner = "mklement0";
+      repo = name;
+      rev = version;
+      hash = "sha256-AqAnY/neBIkxgB5ioyExO4NSLw0Rk4wTo9hcCHTqOQ8=";
+    };
+in pkgs.stdenv.mkDerivation {
+  inherit src name version;
+
+  dontBuild = true;
+  installPhase = ''
+    cd "$src"
+    mkdir -p "$out/bin" "$out/share/man"
+    cp bin/fileicon "$out/bin/"
+    cp man/fileicon.1 "$out/share/man"
+  '';
+
+  # TODO: Run the test suite?
+}

flake.nix

@@ -63,6 +63,8 @@
       mkNixOsGraphical = opts: import ./nixos/graphical.nix opts;
       mkNixOsNetworking = opts: import ./nixos/networking.nix opts;
     in {
+      packages."aarch64-darwin".fileicon = import ./fileicon.nix { pkgs = mkPkgs "aarch64-darwin"; };
+
       homeConfigurations."xenia@Joe-Bidens-MacBook-Pro" =
         let
           system = "aarch64-darwin";