These are two very similar formats. But some people are still just very stuck on GTF, despite being less well defined than GFF.
Just replace your require with import right? Sometimes it works, sometimes it doesn't. There is a lot of insanity that goes on, and it is really hard to do a proper technical analysis because ESM is pretty strict while CJS and the ecosystem around it is comapratively a bit loose, and some tools that use ESM use techniques to smooth over the strictness of ESM, allowing loosey-goosey stuff in the ESM ecosystem that shouldn't be allowed really.
I know less about this but it seems tricky. Just change print "hello" to print("Hello") right?
Well, turns out you explode millions of lines of code
Changing from one library to another is less of a rift, but this one seemed particularly odd because TensorFlow, a previously popular (machine learning library) got pretty messed up, entire versions of TensorFlow were pulled from PyPI making older packages hard to install, and people have to pin to older versions of python 3 and other such things
E.g. https://blog.pierre-ricadat.com/scala-3-migration-report-from-the-field