diff --git a/.gitignore b/.gitignore
index 63db7c9..f6ebf78 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,5 +1,6 @@
 target/
 logs/
+.helix
 result
 
 .env
diff --git a/shell.nix b/shell.nix
index 01595e0..8e4b5d9 100644
--- a/shell.nix
+++ b/shell.nix
@@ -17,5 +17,7 @@ pkgs.mkShell {
     gdb
     nixfmt-rfc-style
     nil
+    ltex-ls
+    marksman
   ];
 }