Create build.yml

.github/workflows/build.yml

@@ -0,0 +1,19 @@
+name: Build
+on: [push, pull_request]
+jobs:
+  build:
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        os: [ubuntu-latest, macOS-latest]
+    steps:
+      - uses: actions/checkout@v4
+      - uses: Panquesito7/[email protected]
+        with:
+          version: dev
+          directory: .
+          add-to-path: true
+
+      - name: Build JuleFmt
+        run: |
+          julec src