Install sc3-plugins-server by entering the following commands in the terminal:
sudo apt update sudo apt install sc3-plugins-server
Description:
Compiled scsynth UGen plugins for SuperCollider
Extension plugins for the SuperCollider3 audio synthesis server. These plugin binaries are needed by scsynth when using the community collection of UGen plugins for SuperCollider.
Homepage: https://github.com/supercollider/sc3-plugins
Version: 3.7.1~repack-2
Section: universe/sound