From 2656538a84b7c7423a327ca55b200a064b8bb73e Mon Sep 17 00:00:00 2001
From: Snoweuph <snow@euph.email>
Date: Fri, 10 Apr 2026 21:32:29 +0200
Subject: [PATCH] treesitter: allow null in grammar options

---
 docs/manual/release-notes/rl-0.9.md       | 3 +++
 modules/plugins/treesitter/treesitter.nix | 4 ++--
 2 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/docs/manual/release-notes/rl-0.9.md b/docs/manual/release-notes/rl-0.9.md
index 3e09d256..a6e5dfd6 100644
--- a/docs/manual/release-notes/rl-0.9.md
+++ b/docs/manual/release-notes/rl-0.9.md
@@ -229,6 +229,9 @@
 
 [Snoweuph](https://github.com/snoweuph)
 
+- Fix `tressiter` to allow `null` in grammar options, so they can be filtered
+  out.
+
 - Added [Selenen](https://github.com/kampfkarren/selene) for more diagnostics in
   `languages.lua`.
 
diff --git a/modules/plugins/treesitter/treesitter.nix b/modules/plugins/treesitter/treesitter.nix
index c2039a9f..a25c1d3f 100644
--- a/modules/plugins/treesitter/treesitter.nix
+++ b/modules/plugins/treesitter/treesitter.nix
@@ -4,7 +4,7 @@
   ...
 }: let
   inherit (lib.options) mkOption mkEnableOption literalExpression;
-  inherit (lib.types) listOf package bool;
+  inherit (lib.types) listOf nullOr package bool;
 in {
   options.vim.treesitter = {
     enable = mkEnableOption "treesitter, also enabled automatically through language options";
@@ -13,7 +13,7 @@ in {
     autotagHtml = mkEnableOption "autoclose and rename html tag";
 
     grammars = mkOption {
-      type = listOf package;
+      type = listOf (nullOr package);
       default = [];
       example = literalExpression ''
         with pkgs.vimPlugins.nvim-treesitter.grammarPlugins; [