libnss-systemd

Description

nss module providing dynamic user and group name resolution
nss-systemd is a plug-in module for the GNU Name Service Switch (NSS)
functionality of the GNU C Library (glibc), providing UNIX user and group name
resolution for dynamic users and groups allocated through the DynamicUser=
option in systemd unit files. See systemd.exec(5) for details on this
option.

Installing this package automatically adds the module to /etc/nsswitch.conf.