I’m not super familiar with sysext, but from my understanding, you’d need to create an additional sysext to include, or find an existing one for DMS (I couldn’t find one).
Your other options would be using rpmtree or a custom image. Theres already a few images out there that are based on Bluefin with Niri + DMS added.
Tbh I’m recalling struggling to find good documentation for sysext. Asking in the ublue discord will probably get you better answers.


Sunshine should be able to do hardware encoding for that GPU, it has support for VA-API