diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
new file mode 100644
index 0000000..ec2bbbe
--- /dev/null
+++ b/.github/workflows/ci.yml
@@ -0,0 +1,37 @@
+name: main
+
+on:
+  pull_request:
+  push:
+    branches:
+    - main
+ 
+
+jobs:
+  build:
+    runs-on: ${{matrix.os}}
+    strategy:
+      matrix:
+        os: [ubuntu-latest, windows-latest, macOS-latest]
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v2
+
+      - name: Use OCaml ${{ matrix.ocaml-compiler }}
+        uses: ocaml/setup-ocaml@v2
+        with:
+          opam-pin: false
+          opam-depext: false
+          ocaml-compiler: ocaml.5.0.0,ocaml-option-mingw
+          opam-repositories: |
+            dra27: https://github.com/dra27/opam-repository.git#windows-5.0
+            default: https://github.com/ocaml-opam/opam-repository-mingw.git#sunset
+            upstream: https://github.com/ocaml/opam-repository.git
+          cache-prefix: ${{ steps.multicore_hash.outputs.commit }}
+
+      - run: opam install . --deps-only --with-test
+
+      - run: opam exec -- dune build
+
+      - run: opam exec -- dune runtest
\ No newline at end of file