Have been using it for a while on different systems including some pretty unstable test systems and I haven’t had any issues. It does have some issues with that you cannot trust the automatic import since AB might create extra transactions

You can setup your own if you wish, but a lot of these parties also have had an audit done on security and on privacy. That is not gonna matter if you live in the US, but that is a problem

I have had a lot of issues setting up Firefly III on different systems so I never got to get it working.

Eventueel I ended upfinding Actual Budget, while not perfect it works really well and I have been using it for more than a year now

One of the largest retailers here in NL only had 1

Actual Budget a selfhosting budget software. It helps me keep track of my finances