And this is why the fediverse will never work out - if I gamble wrong and set up shop on an instance that gets in a pissing match with other ones, I either have to make an account elsewhere (and then have to do it again later the next time two instances defederate each other) or live with only seeing some of my subscribed content.
File storage, mainly. I have 2 NAS devices (one Synology I picked up in 2014, and an Unraid device I just built a couple months ago) - the former holds 13TB and the latter currently holds 35TB with plans to bring it to 100TB as I get money for more drives.
The Unraid system has a Youtube-dl instance running to auto-pull videos from the channels I follow, and I also run my Plex server from it. The Synology only has a Git server on it that I use to keep local copies of repos that I store on GitHub, along with personal projects that I’d rather not publish (even as private repos) in the cloud.
Until the instance you choose to set up on ends up in a feud with any, or all of those instances.
The whole fediverse experiment is going to end up with a number of small, highly segregated communities, and even more political polarization. I guess if you want to live in an echo chamber, a federated environment is the best way to go about it.