Seat manager
Todo: This article needs verification for X11 based setups
A seat manager dictates access to input and output devices like keyboard and monitor.
On alpine linux 2 seat managers are available:
Input and video groups
Some instructions mention the need for the input and video groups. This is in most cases not correct and insecure! The seat manager already provides the necessary permissions.
Due to issue #15409 there is currently 1 exception: If you aren't using elogind and need PipeWire to access a webcam you need the video group.