falkTX - thanks for feedback!
I wonder if there's a big enough interest among the Linux musicians to form a project aiming to create such a live music performace distribution.
I'm not a programmer, but I'm a musician and I want to take my Linux audio setup on the stage again without being afraid that I'll have to reboot it in the middle of a song (re-typing password 3 times before the audience - I'll never forget that concert).
In the beginning - it doesn't matter how limited it is, the key factor is making sure it'll never fail. I see no use of putting a ton of bleeding edge plugins and programs on Linux laptop and watch all that crash onstage. I prefer to work with what's limiting me harshly, but makes me sure I can perform with it in front of people and it won't fail.
Also - I feel that all the components are there in the Linux world however it requires savvy people to take care of that and a lot of testing. I could provide testing if anybody would be interested in making such an effort.
There are a few music production distributions, but the closest to a live music performance one is LiveMOD - which looks like promising starting point - and MOD Duo is a great proof of concept. Linux can run live audio onstage and be rock-solid on that.
More technical stuff now:
Can Carla make use of the MOD JACK optimizations? Could it be a reasonable option as a main workhorse for a live music setup?