diff --git a/.emmyrc.json b/.emmyrc.json
index 36adf7e..384940a 100644
--- a/.emmyrc.json
+++ b/.emmyrc.json
@@ -1,17 +1,11 @@
 {
   "$schema": "https://raw.githubusercontent.com/EmmyLuaLs/emmylua-analyzer-rust/refs/heads/main/crates/emmylua_code_analysis/resources/schema.json",
-  "diagnostics": {
-    "enable": true,
-    "globals": ["vim", "it", "describe", "before_each", "after_each"]
-  },
   "runtime": {
     "version": "LuaJIT"
   },
   "workspace": {
     "library": [
-      "$VIMRUNTIME",
-      "library/busted",
-      "library/luassert"
+      "$VIMRUNTIME"
     ]
   }
 }
diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 55d9ab4..866a18c 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -16,7 +16,7 @@ jobs:
         run:
           nix-shell --pure --run 'true'
 
-      - name: Type-check with lua-language-server
+      - name: Type-check
         run:
           nix-shell --pure --run 'make lint'
 
diff --git a/.gitmodules b/.gitmodules
index 435ce42..78473aa 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,20 +1,4 @@
-; [submodule "library/busted"]
-; 	path = library/busted
-; 	url = https://github.com/LuaCATS/busted
-; 	branch = main
-; [submodule "library/luassert"]
-; 	path = library/luassert
-; 	url = https://github.com/LuaCATS/luassert
-; 	branch = main
-; [submodule "library/luv"]
-; 	path = library/luv
-; 	url = https://github.com/LuaCATS/luv
-; 	branch = main
 [submodule "library/busted"]
 	path = library/busted
 	url = https://github.com/LuaCATS/busted
 	branch = main
-[submodule "library/luassert"]
-	path = library/luassert
-	url = https://github.com/LuaCATS/luassert
-	branch = main
diff --git a/library/luassert b/library/luassert
deleted file mode 160000
index d3528bb..0000000
--- a/library/luassert
+++ /dev/null
@@ -1 +0,0 @@
-Subproject commit d3528bb679302cbfdedefabb37064515ab95f7b9
diff --git a/shell.nix b/shell.nix
index fcebe49..c42bd26 100644
--- a/shell.nix
+++ b/shell.nix
@@ -12,7 +12,7 @@ pkgs.mkShell {
   packages = [
     pkgs.git
     pkgs.gnumake
-    pkgs.emmylua-ls
+    pkgs.emmylua-check
     pkgs.lua51Packages.busted
     pkgs.lua51Packages.luacov
     pkgs.lua51Packages.luarocks