delegation

 delegation  is a way to entrust someone(s) via OAuth preferably IndieAuth (without sharing passwords) to post things on your site on your behalf while you are away, like on vacation.

IndieWeb Examples
none so far.

Google
Google G-Suite supports delegation for your calendar and email:
 * https://support.google.com/a/users/answer/170957?hl=en

Microsoft Office
Microsoft Office online supports delegation for your mail and calendar: https://support.office.com/en-gb/article/allow-someone-else-to-manage-your-mail-and-calendar-41c40c04-3bd1-4d22-963a-28eafec25926