The installer adds the ready-to-run app to Applications. It works on Apple Silicon and Intel Macs with macOS 12 or later.
After installation, use the calendar icon in the menu bar → Google Calendar… → Connect to Google. Choose your calendars and save the selection. Under Fourth column, select today’s events or text + events.
The app requests read-only access. Your sign-in tokens are kept in your Mac’s Keychain. Event titles are visible on your desktop.