https://www.kvraudio.com/forum/viewt...?f=31&t=424953
If you don't yet have the free U-he Podolski synth, get it at the link,
osxmidi is very familiar with it, post your linux distro, kernel version,
video chip or card, and it should be easy to troubleshoot the lack
of normal gui. Did you compile linvst, or use the binary? Which version
of reaper is installed?
Cheers