LabSound VS OpenFrameworks

Not quite. There would be no JS. The WebAudio API is implemented in Rust. You would just use the innards (buffers, audio graph etc.) and leave it as a Rust framework.

LabSound [0] has done something similar with C++ and WebKit. They took the WebAudio implementation and leave it as a C++ framework.

[0] https://github.com/LabSound/LabSound

Not exactly VJ, but could be used for it. https://openframeworks.cc

Since you have C# experience, take this time to learn more about C++ while you continue to look. While yes, it is very easy to write bad code, it's not a huge deal since you just graduated and are just hacking around. Plus there are a lot of helpers these days to make writing bad code a little less likely.A former mentor of mine gifted me "C++ Without Fear" by Brian Overland which I can recommend. It's not too expensive, I think it was $25 or something like that, likely less used. Also comes in E-book form.If you'd like a gentler introduction to C++, may I recommend openFrameworks?

Have you come across openFrameworks (https://openframeworks.cc/) or Cinder (https://libcinder.org/)?

Not sure it checks all your boxes, but check openFrameworks?

I recently heard of openFrameworks which should make it pretty easy to make your game. It handles putting together a bunch of other libraries and window management so you can focus on drawing some shapes on the screen and handling user input. Sounds like love2d but all C++.

let me know if I can help out - also checkout the forum at openframeworks.cc - the people there are very friendly and helpful - especially with people that are completely new to oF...

I mean, https://www.libcinder.org and https://openframeworks.cc have been mainstays of the creative coding industry for a long time now. A Rust take on the problem shouldn't be too surprising.