diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 75388fc..711a70a 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -35,14 +35,15 @@ jobs:
           python-version: '3.11'
           cache: 'pip'
 
-      - run: pip install -r requirements.txt
+      - uses: taiki-e/install-action@just
+
+      - run: just setup
 
       - name: Setup Pages
         uses: actions/configure-pages@v1
 
       - name: Build
-        run: |
-          mkdocs build -v
+        run: just build
 
       - name: Upload artifact
         uses: actions/upload-pages-artifact@v1
diff --git a/justfile b/justfile
new file mode 100644
index 0000000..6a55780
--- /dev/null
+++ b/justfile
@@ -0,0 +1,15 @@
+export PATH := "./env/bin:" + env_var('PATH')
+
+# Recipes
+@default:
+    just --list
+
+setup:
+    python -m venv env
+    env/bin/pip install -r requirements.txt
+
+@start:
+    mkdocs serve
+
+@build:
+    mkdocs build -v