macport not avail for emacs-30, use regular/native

flake.nix

@@ -7,7 +7,7 @@
   outputs = { self, nixpkgs, flake-utils, emacs-overlay }: let
     mkEmacs = pkgs: v: wayland: pkgs.emacsWithPackagesFromUsePackage {
       config = ./main.org;
-      package = (pkgs."${v}${if pkgs.stdenv.isDarwin then "-macport" else (if wayland then "-pgtk" else "")}").overrideAttrs (old: {
+      package = (pkgs."${v}${if pkgs.stdenv.isDarwin then "" else (if wayland then "-pgtk" else "")}").overrideAttrs (old: {
         passthru = old.passthru // {
           treeSitter = true;
         };

main.org

@@ -268,6 +268,8 @@ We all know the web is the future, obviously, of course.
   "\\.tsx?\\'")
 (leaf php-mode
   :ensure t)
+(leaf rainbow-mode
+  :ensure t)
 #+end_src
 
 * D2