There’s a long list of supported controllers. The process for making your own mappings can indeed be a bit cumbersome, but it also seems to be quite powerful in the kind of features it can support, thanks to javascript integration.

Not sure about the library management, seems to work well enough for me.

I used WineASIO with Guitar Rig for a long time and it worked well and with acceptably low latency. It can be a hassle to set up though and I don’t know how it plays along with pipewire these days.

I’ve never used Traktor but I like Mixxx. What problems did you have with it?

That’s because they’re a malware company:

this has been going on in several different forms for years now so I’m just counting the days until the next annoying pop-up appears.

The solution is to not use their products. Use Linux.

The one thing that takes a bit to get used to is the borrow checker. Advice there is don’t fight it. Trust the compiler to tell you your code is wrong. Once you understand the ownership/borrowing rules, it’s honestly just a joy to code in. Static typing protects you from the inevitable mess that every large python project becomes, and the borrow checker gives you the comfort and safety you’ve come to expect from memory safe languages without the overhead of a garbage collector.

Still working on this, help is welcome :)