You’ll want to start here, but it depends how comfortable you are with self-hosting as to whether it’ll be a walk in the park. I had good luck with it, but I self host a lot of stuff and know what kinds of pitfalls there are. The docs aren’t totally up to par - I might take a look at contributing to improving them - so you may need to do some searching around if you have problems. There’s a Lemmy Support community on lemmy.ml you could check out too.