diff --git a/modules/dev/javascript.nix b/modules/dev/javascript.nix
index 1b0eb4e9..cea1c53b 100644
--- a/modules/dev/javascript.nix
+++ b/modules/dev/javascript.nix
@@ -12,6 +12,7 @@ in
     users.users.sako.packages = with pkgs; [
       nodejs
       yarn
+      nodePackages.typescript-language-server
     ];
   };
 }
diff --git a/modules/dev/lua.nix b/modules/dev/lua.nix
index ef3f9fc4..cd945d40 100644
--- a/modules/dev/lua.nix
+++ b/modules/dev/lua.nix
@@ -15,13 +15,9 @@ in {
 
   config = mkIf cfg.enable {
     users.users.sako.packages = with pkgs; [
-      # lua language server
       lua-language-server
-      # lua
       lua
-      # luarocks
       luarocks
-      # format and lint
       stylua
       selene
     ];
diff --git a/modules/dev/python.nix b/modules/dev/python.nix
index a8e95487..c6744196 100644
--- a/modules/dev/python.nix
+++ b/modules/dev/python.nix
@@ -18,6 +18,7 @@ in {
       python3
       black
       python310Packages.pip
+      nodePackages.pyright
     ];
   };
 }
diff --git a/modules/dev/rust.nix b/modules/dev/rust.nix
index dceca5d6..897083c0 100644
--- a/modules/dev/rust.nix
+++ b/modules/dev/rust.nix
@@ -12,6 +12,7 @@ in
     users.users.sako.packages = with pkgs; [
       rustup
       cargo
+      rust-analyzer
     ];
   };
 }