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

Calculating dependencies ...

!!! Problem resolving dependencies for =sys-apps/systemd-utils-255.18
 done!
Dependency resolution took 0.83 s (backtrack: 0/20).


!!! The ebuild selected to satisfy "=sys-apps/systemd-utils-255.18" has unmet requirements.
- sys-apps/systemd-utils-255.18::gentoo USE="acl kmod (split-usr) tmpfiles udev -boot -kernel-install -secureboot (-selinux) -sysusers -test -ukify" PYTHON_SINGLE_TARGET="-python3_12 -python3_13"

  The following REQUIRED_USE flag constraints are unsatisfied:
    exactly-one-of ( python_single_target_python3_12 python_single_target_python3_13 )

  The above constraints are a subset of the following complete expression:
    any-of ( kernel-install tmpfiles sysusers udev ) boot? ( kernel-install ) ukify? ( boot ) exactly-one-of ( python_single_target_python3_12 python_single_target_python3_13 )