I am now sucessfully running DaisySP on my Debian machine using RtAudio. Or rather, I am running DStudio, my “coding a studio” classes built on DaisySP.
If anyone is interested, I could publish my findings, just need to clean things up a bit! As for what I now can do, it sounds just the same as in the DStudio demo (https://youtu.be/65uiYlsG29Q) but it taxes the CPU a lot less due to not having the overhead of openFrameworks.