emacs: fix broken treesitter package

Author: ratsclub

flake.lock

@@ -1,6 +1,8 @@
 { inputs, pkgs, ... }:
 
 let
+  smallPkgs = inputs.small.legacyPackages.${pkgs.stdenv.hostPlatform.system};
+
   emacsConfig = pkgs.writeTextDir "config/init.el" ''
     (load "${./init.el}")
   '';
@@ -39,7 +41,9 @@ in
         org-contrib
 
         # treesitter
-        treesit-grammars.with-all-grammars
+        # TODO: wait to reach unstable https://github.com/nixos/nixpkgs/pull/491704
+        # treesit-grammars.with-all-grammars
+        smallPkgs.emacsPackages.treesit-grammars.with-all-grammars
       ];
   };