diff --git a/.github/workflows/pr-main-ci.yml b/.github/workflows/pr-main-ci.yml
new file mode 100644
index 0000000..0f48c14
--- /dev/null
+++ b/.github/workflows/pr-main-ci.yml
@@ -0,0 +1,30 @@
+name: PR Checks (main)
+
+on:
+  pull_request:
+    branches:
+      - main
+
+jobs:
+  test-and-build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Set up Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: "3.12"
+
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip
+          python -m pip install -e . build
+
+      - name: Run tests via Makefile
+        run: make test
+
+      - name: Build package via Makefile
+        run: make build
diff --git a/.gitignore b/.gitignore
index 05f029b..b7a512c 100644
--- a/.gitignore
+++ b/.gitignore
@@ -16,7 +16,9 @@ dist/
 
 # OS
 .DS_Store
-.github
+.github/*
+!.github/workflows/
+!.github/workflows/*.yml
 
 # Coverage
 .coverage