diff --git a/.github/ci.yml b/.github/ci.yml
new file mode 100644
index 0000000..d187251
--- /dev/null
+++ b/.github/ci.yml
@@ -0,0 +1,48 @@
+name: CI
+
+on:
+     push:
+     pull_request:
+     workflow_dispatch:
+
+defaults:
+     run:
+          shell: bash
+
+jobs:
+     fmt:
+          runs-on: ubuntu-latest
+          steps:
+               - name: Checkout repository
+                 uses: actions/checkout@v4
+
+               - name: Install tooling
+                 uses: ok-nick/setup-aftman@v0.4.2
+                 with:
+                      cache: true
+
+               - name: Check formatting
+                 run: lune run fmt src/ --check
+
+     lint:
+          needs: ["fmt"]
+          runs-on: ubuntu-latest
+          steps:
+               - name: Checkout repository
+                 uses: actions/checkout@v4
+                 with:
+                      submodules: true
+
+               - name: Install tooling
+                 uses: ok-nick/setup-aftman@v0.4.2
+                 with:
+                      cache: true
+
+               - name: Initialize typedefs 
+                 run: lune setup
+
+               - name: Typecheck
+                 run: lune run typecheck
+
+               - name: Lint
+                 run: lune run lint
diff --git a/.lune/fmt.luau b/.lune/fmt.luau
index bb6e460..cbcb325 100755
--- a/.lune/fmt.luau
+++ b/.lune/fmt.luau
@@ -3,4 +3,9 @@
 local command = require("util/command")
 local process = require("@lune/process")
 
-command.run("stylua", "--verbose", process.args[1] or "src/")
+command.run(
+    "stylua",
+    "--verbose",
+    process.args[2] or "",
+    process.args[1] or "src/"
+)
diff --git a/README.md b/README.md
index 91a9d32..ffad5fc 100644
--- a/README.md
+++ b/README.md
@@ -16,4 +16,4 @@ This is a template for initializing [Luau](https://luau-lang.org) projects with
     - Linting
     - Typechecking
 - Unit-testing setup (tests/) -- TODO
-- GitHub Actions CI configuration to lints and tests (.github) -- TODO
+- GitHub Actions CI configuration to lints and tests (.github)