saw ref. to this from Phoronix forums..

===copy==

XanMod is a general-purpose Linux kernel distribution with custom settings and new features. Built to provide a stable, responsive and smooth desktop experience.

The real-time version is recommended for critical runtime applications such as Linux gaming eSports, streaming, live productions and ultra-low latency enthusiasts.

Supports all recent x86_64 versions of Ubuntu / Debian-based systems.

Note: The current proprietary NVIDIA, VirtualBox, VMware Workstation / Player and some other dkms modules builds do not officially support Clang'ed (EDGE) and RT kernels.

===copy end==

site
https://xanmod.org/

I wonder how it may interact with Cinelerra(s) - because there we use threads and some internal scheduling tricks....