I just thought I would mention the existence of another project to run VCV Rack on the RPi: https://community.vcvrack.com/t/the-sonaremin-v1-1-6-now-supports-the-raspberry-pi-4/10056/38.
Rather than fork and rewrite the code as miRack did, sonaremin is much more closely related to VCV Rack. The newest version can be found here: https://github.com/hexdump0815/sonaremin/releases/tag/v1.1.6_8