>Best of all is the fact that it uses a flat file DB so it can easily be backed up, moved around and migrated. Can not recommend it enough. Also, it's PHP, so works on any cheap shared hosting. That's how I use it.
I've also been running my own FreshRSS instance for a few years now and this was the deciding factor for me.
PHP+SQLite pretty much guarantees that any "toaster connected to the internet" would be able to serve it.
Even now that I'm using a slightly more powerful server, I don't want to run a dedicated Postgres just to store some personal RSS feeds. I know I can put everything on a docker and pretend it's not there, but that's just hiding a detail that's going to bite back when I need to backup my data or change servers.
I wish that more self-hosted applications would support SQLite out of the box.