[xmodem]

We used to use terraform to invite people to our github org, along with a file in a repo to map company emails to github usernames. When a new starter joins, their manager submits a PR to add their username.

It was a huge mess - it would fail to apply if you looked at it funny, and it had no controls against someone typo-ing a username and inviting a random person to the org. But it solved this case at least.