grenzland.club is a Fediverse instance that uses the ActivityPub protocol. In other words, users at this host can communicate with people that use software like Mastodon, Pleroma, Friendica, etc. all around the world.
This server runs the snac software and there is no automatic sign-up process.
Events need to be fed back into the campaign, so they develop into living campaign lore that's accessible through play. I feel that's time much better spent then writing up session reports:
https://lkh.sdf-eu.org/wandererbill/blog/004-campaign-lore.html