diff --git a/chatroom_tutorial/.github/workflows/luacheck.yml b/chatroom_tutorial/.github/workflows/luacheck.yml
new file mode 100644
index 0000000..295abb0
--- /dev/null
+++ b/chatroom_tutorial/.github/workflows/luacheck.yml
@@ -0,0 +1,16 @@
+name: luacheck
+on: [push, pull_request]
+
+jobs:
+  luacheck:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v2
+    - name: Install Luarocks
+      run: |
+        sudo apt-get update -qyy
+        sudo apt-get install luarocks -qyy
+    - name: Install Luacheck
+      run: luarocks install --local luacheck
+    - name: Run Luacheck
+      run: $HOME/.luarocks/bin/luacheck .
diff --git a/chatroom_tutorial/.luacheckrc b/chatroom_tutorial/.luacheckrc
new file mode 100644
index 0000000..ec72470
--- /dev/null
+++ b/chatroom_tutorial/.luacheckrc
@@ -0,0 +1,52 @@
+read_globals = {
+    "DIR_DELIM",
+    "INIT",
+
+    "minetest",
+    "core",
+    "dump",
+    "dump2",
+
+    "Raycast",
+    "Settings",
+    "PseudoRandom",
+    "PerlinNoise",
+    "VoxelManip",
+    "SecureRandom",
+    "VoxelArea",
+    "PerlinNoiseMap",
+    "PcgRandom",
+    "ItemStack",
+    "AreaStore",
+
+    "vector",
+
+    "mhud",
+    "teacher",
+    "beerchat",
+
+    table = {
+        fields = {
+            "copy",
+            "indexof",
+            "insert_all",
+            "key_value_swap",
+            "shuffle",
+        }
+    },
+
+    string = {
+        fields = {
+            "split",
+            "trim",
+        }
+    },
+
+    math = {
+        fields = {
+            "hypot",
+            "sign",
+            "factorial"
+        }
+    },
+}