libfido2 links against pcsclite's libpcsclite.so.1, which since
pcsclite 2.3.1 is a shim that dlopens libpcsclite_real.so.1. nixpkgs
patches that dlopen to an absolute store path. make-initrd-ng only
follows DT_NEEDED, so the real library never ends up in the initrd.
systemd-cryptsetup then logs at boot:
loading ".../pcsclite-2.4.1-lib/lib/libpcsclite_real.so.1" failed:
cannot open shared object file: No such file or directory
and FIDO2 tokens behind PC/SC (NFC readers) cannot be used to unlock
LUKS in stage 1. Add the real library to the initrd store paths.