These aren’t good reasons

How do the matrix modules work?

If you could fine one, then maybe

You’re probably right, ashamed I didn’t notice though

Why do you want a successor?

Check your local transit authority’s website and find the GTFS endpoint urls

Is it on F-droid?

If the routes are published with GTFS (which they probably are), I bet there’s a tool to get it done!

F-droid has a few decent ones, but it seems it varies by country quite a bit?

dtrx is the way to do it. It’s short for “do the right extraction”, and it just works.

Also, all you have to remember for tar is “-xtract -zee -vucking -files” (extract the fucking files, but first letters only)