The thing with self hosting is that you want in most cases, to set and forget and that means you want as little going wrong as possible. To ensure that, you need to find a way that other things can’t fuck with what you’re hosting. This is called a container. The trade off is disk space, but that’s okay because it’s a server, unlike on a computer, but let me not start my rant about the stupidity of Snap and Flatpak. Anyway… Thanks to containers, you don’t have any external factors and basically everything runs in its own world. Which means you can always delete, restore and edit without anything else being affected.