threeeightyeight

threeeightyeight is a private tool of threeeightyeight.com. It works only for the accounts it is set up for.

When a Google account is connected, threeeightyeight can:

make documents in that account's Google Drive, and export them as PDF;
book, move or cancel meetings on that account's own calendar, with a Google Meet link and Google's own invitations to the guests.

It asks Google for three things: the account's email address, the files it makes in that Drive (nothing else in the Drive), and events on calendars the account owns.