NSS is not available in musl libc:
./src/nm-daemon-helper/nm-daemon-helper.c:9:10: fatal error: nss.h: No such file or directory
9 | #include <nss.h>
| ^~~~~~~
(cherry picked from commit 9b802ff7f2)
Implement a new operation to resolve the hostname from an
address. Note the call to __nss_configure_lookup("hosts", "dns"): this
configures the glibc Name Service Switch (NSS) to only use DNS,
bypassing other modules that might be configured in
/etc/nsswitch.conf. Other modules like 'myhostname' or 'resolve' can
return synthesized names, while we are only interested in real DNS
results.
(cherry picked from commit 648b0848f1)