have you looked at iplug2? https://iplug2.github.io https://iplug2.github.io since I was already making my own knobs and panels for vcvrack, it was an easy fi

have you looked at iplug2? https://iplug2.github.io https://iplug2.github.io since I was already making my own knobs and panels for vcvrack, it was an easy fit for building out vst3/au plugins.