Tried these on Linux Mint v18.3 Cinnamon (derived from ubuntu). Both seem to install successfully but neither will open. ToneLib Zoom works well on this OS (Mint) and on my Win 10 install. I got ToneLib-GFX working on my Win 10 system and the pre installed patches sound great, had to install ASIO4all to get latency time manageable. ToneLib-jam opens but when I select preferences it hangs and closes the app.