diff --git a/.github/workflows/lint.yaml b/.github/workflows/lint.yaml
new file mode 100644
index 0000000..0bac502
--- /dev/null
+++ b/.github/workflows/lint.yaml
@@ -0,0 +1,27 @@
+name: "Lint"
+
+on:
+  push:
+  pull_request:
+  schedule:
+    - cron: "0 0 * * *"
+
+jobs:
+  lint:
+    name: Lint
+    runs-on: "ubuntu-latest"
+    steps:
+        - name: "Checkout the repository"
+          uses: actions/checkout@v4
+
+        - name: "Set up Python"
+          uses: actions/setup-python@v5
+          with:
+            python-version: "3.12"
+            cache: "pip"
+
+        - name: "Install requirements"
+          run: python3 -m pip install -r requirements_release.txt
+
+        - name: "Run"
+          run: python3 -m ruff check .
diff --git a/docs/installation_and_configuration.md b/docs/installation_and_configuration.md
index 51f0ade..819fced 100644
--- a/docs/installation_and_configuration.md
+++ b/docs/installation_and_configuration.md
@@ -64,7 +64,7 @@ o365:
 
 Key | Type | Required | Description
 -- | -- | -- | --
-`account_name` | `string` | `True` | Uniquely identifying name for the account. Calendars entity names will be suffixed with this. `calendar.calendar_account1`
+`account_name` | `string` | `True` | Uniquely identifying name for the account. Calendars entity names will be suffixed with this. `calendar.calendar_account1`. Do not use email address or spaces.
 `client_id` | `string` | `True` | Client ID from your O365 application.
 `client_secret` | `string` | `True` | Client Secret from your O365 application.
 `alt_auth_method` | `boolean` | `False` | If False (default), authentication is not dependent on internet access to your HA instance. [See Authentication](./authentication.md)
diff --git a/requirements_release.txt b/requirements_release.txt
index c9399f6..6f6ea77 100644
--- a/requirements_release.txt
+++ b/requirements_release.txt
@@ -1 +1,2 @@
 PyGithub>=1.51
+ruff==0.4.2