Audio/sound (ALSA) in guix environment --container

[Pierre Neidhardt]

Hi!

I'm trying to run an graphical application with audio in a Guix
environment.

So far:

--8<---------------cut here---------------start------------->8---
guix environment --container \
  --share=/tmp/.X11-unix/ \
  --share=/dev/snd \
  --ad-hoc foo coreutils -- \
  env DISPLAY=$DISPLAY foo "$@"
--8<---------------cut here---------------end--------------->8---

I get this error:

--8<---------------cut here---------------start------------->8---
ALSA lib pcm_direct.c:1943:(snd1_pcm_direct_parse_open_conf) The field ipc_gid 
must be a valid group (create group audio)
--8<---------------cut here---------------end--------------->8---

I though --share=/dev/snd would help, but I don't think that's useful.
I tried creating the "audio" group in the container or adding the user
to the group, to no avail:

--8<---------------cut here---------------start------------->8---
> guix environment -C --ad-hoc coreutils shadow 
address@hidden . [env]# groups
groups: cannot find name for group ID 0
0 groups: cannot find name for group ID 65534
65534
address@hidden . [env]# groupadd foo
groupadd: PAM: Critical error - immediate abort
--8<---------------cut here---------------end--------------->8---

Can anyone get ALSA to work in Guix containers?

-- 
Pierre Neidhardt
https://ambrevar.xyz/

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