add automatic build systems

.github/workflows/deploy.yml

@@ -0,0 +1,35 @@
+name: Deploy
+on:
+  pull_request:
+  push:
+
+jobs:
+  build:
+    name: Build
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repo
+        uses: actions/checkout@v3
+
+      - name: Set Node.js 16.x
+        uses: actions/setup-node@v3
+        with:
+          node-version: 16.x
+
+      - name: Run install
+        uses: borales/actions-yarn@v4
+        with:
+          cmd: install # will run `yarn install` command
+
+      - name: Install aftman
+        uses: ok-nick/setup-aftman@v0.3.0
+
+      - name: Build
+        uses: borales/actions-yarn@v4
+        with:
+          cmd: build # will run `yarn build` command
+
+      - name: Deploy project
+        run: mantle deploy -e default
+        env:
+          ROBLOSECURITY: ${{ secrets.ROBLOSECURITY }}