Currently I’m with lemmy.world, but if i wanted to create my own, to run at my house, would I need to register a domain? I like the idea of having my own domain but also don’t know how the storage works… like if I post to my own, sure it gets stored, but if I post to somewhere on lemmy.world, where does it get stored?
Yeah, you would need a domain. You would also need a server to run Lemmy. You can run it on any computer, many people use a RaspberryPi. A server in your home might not be easy to setup if you haven’t done anything like that before. Some cloud servers might offer an easy solution to do so but they aren’t usually free.
Here’s the documentation for it: https://join-lemmy.org/docs/en/administration/administration.html