diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
new file mode 100644
index 0000000..9f4fe45
--- /dev/null
+++ b/.github/workflows/ci.yaml
@@ -0,0 +1,31 @@
+name: CI
+
+on:
+  push:
+    branches: main
+  pull_request:
+    branches: '*'
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  spell-check:
+    name: Spell Check
+    permissions:
+      contents: read
+    timeout-minutes: 10
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Base Setup
+        uses: jupyterlab/maintainer-tools/.github/actions/base-setup@v1
+
+      - name: Install JupyterLab
+        run: python -m pip install -U "jupyterlab>=4.0.0,<5"
+
+      - name: Run spell check
+        run: npx cspell@9.2.1 "**/*.{md,txt,json,js,ts,tsx,jsx,yml,yaml}"
diff --git a/cspell.json b/cspell.json
new file mode 100644
index 0000000..90a11a7
--- /dev/null
+++ b/cspell.json
@@ -0,0 +1,67 @@
+{
+  "version": "0.2",
+  "ignorePaths": [
+    "node_modules",
+    "package-lock.json",
+    "yarn.lock",
+    "dist",
+    "lib",
+    "build",
+    "coverage",
+    ".vscode",
+    ".git",
+    "*.min.js",
+    "*.min.css",
+    "*.map",
+    "jupyterlab_deepnote/labextension"
+  ],
+  "language": "en",
+  "overrides": [
+    {
+      "filename": "**/*.md",
+      "words": [
+        "deepnote",
+        "jupyter",
+        "jupyterlab",
+        "ipynb",
+        "labextension",
+        "jlpm",
+        "pnpm",
+        "monorepo"
+      ]
+    }
+  ],
+  "words": [
+    "apputils",
+    "bdist",
+    "chakra",
+    "codegen",
+    "coreutils",
+    "csstree",
+    "deepnote",
+    "ipynb",
+    "Jakubowski",
+    "jlpm",
+    "jpserver",
+    "jupyter",
+    "jupyterlab",
+    "labextension",
+    "labextensions",
+    "lintcache",
+    "lumino",
+    "monorepo",
+    "nbformat",
+    "pnpm",
+    "pyproject",
+    "Pytest",
+    "pytest",
+    "rseidelsohn",
+    "sdist",
+    "settingregistry",
+    "stylelintcache",
+    "testutils",
+    "venv",
+    "ydoc"
+  ],
+  "useGitignore": true
+}