Have you managed to get sound to work in contained guix shells? Could you please share how you did it?
Someone already asked in Guix help mailing list, but apparently there was no solution.
https://lists.gnu.org/archive/html/help-guix/2022-12/msg00029.html
@luis_felipe
DBSP=$(echo $DBUS_SESSION_BUS_ADDRESS | sed 's/.*unix:path=\([^,]*\).*/\1/')
guix shell \
--container \
--emulate-fhs \
--no-cwd \
--network \
--preserve='^DISPLAY$' \
--preserve='^XAUTHORITY$' \
--preserve='^PULSE_' \
--preserve='^DBUS_' \
--preserve='^XDG_RUNTIME_DIR$' \
--expose="$XAUTHORITY" \
--expose="/dev/" \
--expose="/sys/" \
--expose="/var/run/dbus/system_bus_socket" \
--expose="${XDG_RUNTIME_DIR}/pulse/native" \
--expose=$DBSP \
gtk \
ungoogled-chromium \
-- chromium
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