diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
new file mode 100644
index 0000000..083683e
--- /dev/null
+++ b/.github/workflows/ci.yml
@@ -0,0 +1,36 @@
+name: CI
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+
+jobs:
+  # ───────────────────────── Bash side ─────────────────────────
+  test-bash:
+    runs-on: ubuntu-latest          # Linux covers your .sh script
+    steps:
+      - uses: actions/checkout@v4
+
+      # Install Bats (bash test runner)
+      - name: Set up Bats
+        uses: mig4/setup-bats@v1     # Tiny 1-line action :contentReference[oaicite:1]{index=1}
+        with:
+          bats-version: 1.12.0
+
+      - name: Run Bats tests
+        run: bats -r tests/bats      # adjust path if you keep tests elsewhere
+
+  # ─────────────────────── PowerShell side ─────────────────────
+  test-pwsh:
+    runs-on: windows-latest         # Gives you pwsh + Pester pre-installed :contentReference[oaicite:2]{index=2}
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Run Pester tests
+        shell: pwsh
+        run: |
+          # Pester 5 is already in the image, but you can pin a version:
+          # Install-Module Pester -Force -RequiredVersion 5.6.0
+          Invoke-Pester -Path tests/pester -CI