portage-ng / portage / sys-apps / merge-usr / 7
emerge -vp

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

Calculating dependencies ... done!
Dependency resolution took 0.98 s (backtrack: 0/20).

[ebuild  N     ] sys-apps/merge-usr-7::gentoo  PYTHON_SINGLE_TARGET="python3_14 -python3_12 -python3_13" 10 KiB

Total: 1 package (1 new), Size of downloads: 10 KiB

Wall time
1.940 s vs. 0.005 s for portage-ng