Newer versions of alsa-lib now require a top-level ALSA UCM
configuration (/usr/share/alsa/ucm2/ucm.conf):
ALSA lib parser.c:2159:(load_toplevel_config) Unable to find the top-level configuration file '/usr/share/alsa/ucm2/ucm.conf'.
ALSA lib main.c:983:(snd_use_case_mgr_open) error: failed to import hw:0 use case configuration -2
alsaucm: error failed to open sound card hw:0: No such file or directory
The upstream ALSA UCM configurations are provided by Alpine's
"alsa-ucm-conf" package, so make sure to install it additionally.