Describe the bug

pkgsStatic switches the libc from the default glibc to musl. But musl has its own pkgs overlay, that should compose with pkgsStatic. Currently it does not: #114510.

See also #136549 (comment):

The fact pkgsStatic is using musl is an accident: glibc static build was broken at the time and musl was used instead. Ideally pkgsStatic should differ from pkgs in just having -static kind of flags.

Nowadays glibc.static is working and I was actually thinking about changing pkgsStatic back to using it.