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

Calculating dependencies ...

!!! Problem resolving dependencies for =app-emulation/libguestfs-1.54.1-r1
 done!
Dependency resolution took 0.83 s (backtrack: 0/20).


!!! The ebuild selected to satisfy "=app-emulation/libguestfs-1.54.1-r1" has unmet requirements.
- app-emulation/libguestfs-1.54.1-r1::gentoo USE="fuse ocaml perl python readline -doc -erlang -introspection -libvirt -lua -ruby (-selinux) -static-libs -test -vala" LUA_SINGLE_TARGET="lua5-1 -lua5-3 -lua5-4 -luajit" PYTHON_SINGLE_TARGET="-python3_12 -python3_13"

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

  The above constraints are a subset of the following complete expression:
    lua? ( exactly-one-of ( lua_single_target_luajit lua_single_target_lua5-1 lua_single_target_lua5-3 lua_single_target_lua5-4 ) ) python? ( exactly-one-of ( python_single_target_python3_12 python_single_target_python3_13 ) ) vala? ( introspection )