These are the packages that would be merged, in order:

Calculating dependencies ...

!!! Problem resolving dependencies for =games-util/game-device-udev-rules-20260625
 done!
Dependency resolution took 0.83 s (backtrack: 0/20).


!!! The ebuild selected to satisfy "=games-util/game-device-udev-rules-20260625" has unmet requirements.
- games-util/game-device-udev-rules-20260625::gentoo USE="acl -elogind (-systemd)"

  The following REQUIRED_USE flag constraints are unsatisfied:
    acl? ( any-of ( elogind systemd ) )