TheIndexAura
TheIndexAura builds directories and small tools.
gog
gog is a private command-line tool. The owner of TheIndexAura uses it on their own computer to work with their own Gmail, Google Calendar and Google Drive accounts.
It needs Google access to search and read their mail, send mail they ask it to send, change their Gmail settings (including forwarding), see and change their calendars and events, and find and manage their files. It is not offered to the public, and it serves no other users.
How gog handles Google data is set out in the privacy policy.