Same here! My background is in systems architecture, so I love this stuff.
Though I run mine on my own “private cloud”. Even though it sounds like an amateur operation I’ve got the proper safety nets in place (backups, redundant power, firewalls, etc). A lot of instances are public cloud which is cool and I have nothing against that, I just wanted to do something a little different.
I have no idea how to get people to join but I hope to have some friends in here some day :D
Nothing manual required, you can federate with any other instance as long as you’re not on their ban list.
You basically use your instance’s search to search for a community on the remote instance, then your instance requests the top (5?) posts from the community on the remote instance. Once a user subscribes, all new posts going forward will be sent to your server via the federation.
At least I think that’s how it works, haha.