I also know some computer networking stuffs but meh. It was a setup and forget kind of thing. Updating systems from time to time and disabling #ssh when it isn't necessary. Plus #usbguard I guess. I've hosted my #searxng, #libreddit, #invidious, and #nitter instance locally on the home network but meh. Got too lazy, plus it was expensive to have a server running 24/7. I don't pay the bills.