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.
And here's a treasure trove of alternate earths mapping material: https://zenodo.org/records/10659104 check out 3c. Global Elevation Source Maps.zip in particular!
edit: more maps: https://zenodo.org/records/10659112
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