SnekStudio is a free, open-source VTuber application written using the Godot engine!
Features include:
VRM Support Use a standard model format shared across many tools and applications already. A MediaPipe-based Tracking System Capable of 50 different face blendshapes and hand tracking. VMC Receiver Support For those who would like to import real-time tracking data from other software. Modular Architecture Designed to be easily extended through self-contained modules written in GDScript, or just simple Godot scenes.
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The creator of this software streams on twitch, using the “linux” tag which I follow around. I think she uses debian stable or unstable last time I was on the stream. She also has an owncast, which is like an open source self hosted twitch.
https://expiredpopsicle.com/about.html
I really enjoy when people dogfood software.