diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
new file mode 100644
index 0000000..a31955b
--- /dev/null
+++ b/.github/workflows/ci.yml
@@ -0,0 +1,37 @@
+name: CI
+
+on:
+  push:
+    branches: [ "**" ]
+  pull_request:
+    branches: [ "**" ]
+
+jobs:
+  lint:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Install ShellCheck
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y shellcheck
+
+      - name: Run ShellCheck on all shell scripts
+        run: |
+          # Find all *.sh files tracked by git
+          SH_FILES=$(git ls-files '*.sh')
+          if [ -z "$SH_FILES" ]; then
+            echo "No shell script files found."
+            exit 0
+          fi
+          echo "Running shellcheck on the following files:"
+          echo "$SH_FILES"
+          shellcheck $SH_FILES
+
+      - name: Validate Vim configuration syntax
+        run: |
+          # Run Vim in headless mode to load syntax highlighting and exit.
+          # Any syntax errors in Vim configuration files will cause a non‑zero exit.
+          vim --cmd 'set nomore' -c 'syntax on' -c 'quit' || exit 1
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