is there an actual fedora systemd "run-postinsts" package?

[Robert P. J. Day]

not sure if i'm looking in the right place, but when i'm using
openembedded to build for embedded systems, i can include a
systemd-related package named "run-postinsts" with which i can
effectively simulate firstboot; systemd service that runs on
firstboot, then deletes itself.

i figured i could examine its structure with the corresponding
fedora package, but i see nothing that looks like that. what would be
the analog in fedora if not a separate systemd package? or is that
something fedora folks would just create manually?

rday