Enable wayland support for emacs.

This unfortunately means pinning to a specific version (or using 3rd party emacs-overlay).

nix/configuration/roles/emacs/default.nix

@@ -29,7 +29,7 @@ INIT_SCRIPT=$(cat <<EOF
 EOF
 )
 
-exec ${pkgs.emacs-gtk}/bin/emacs -q --eval "$INIT_SCRIPT" "''${@}"
+exec ${pkgs.emacs29-pgtk}/bin/emacs -q --eval "$INIT_SCRIPT" "''${@}"
   '';
 in
 {
@@ -37,7 +37,7 @@ in
 
   environment.systemPackages = with pkgs; [
     plainmacs
-    emacs-gtk
+    emacs29-pgtk
     clang # To compile tree-sitter grammars
   ];