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

Calculating dependencies ... done!
Dependency resolution took 0.88 s (backtrack: 0/20).


!!! The ebuild selected to satisfy "~net-misc/seafile-9.0.16" has unmet requirements.
- net-misc/seafile-9.0.16::gentoo USE="" 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 )

(dependency required by "net-misc/seafile-client-9.0.16::gentoo" [ebuild])
(dependency required by "=net-misc/seafile-client-9.0.16" [argument])