Cardinal VST - OpenSource VCV Rack version.
If someone is not aware. Such a good project exist!
It is Fully Open Source and all modules included are with clean licenses.
It is VCV RACK plugin but Free!
Get Recent builds here (Login to Github first):
I just loaded it up and it works fine. Venus Theory (Cameron) did a good video on it.
The biggest limitation is that it only works with its own modules, not the commercial ones from VCV: