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I'm running steam in a systemd container, the main issues were sound and notifications: I don't understand how pulseaudio works, so I had to give share some system directories with the guest system to get the sound working. Notifications were solved by sharing dbus. GPU was shared by sharing a single directory in /dev with correct persmissions

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@ingenter please refer to the docker-compose.yml file of the source repository.

To make pulseaudio work in a container, you basically want to pass these volumes from the host to a container:

- /etc/localtime:/etc/localtime:ro

- /etc/machine-id:/etc/machine-id:ro

- $XDG_RUNTIME_DIR/pulse:/run/user/1000/pulse

And then, this environment variable:

PULSE_SERVER=unix:$XDG_RUNTIME_DIR/pulse/native

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