portage-ng / portage / app-arch / rpm / 4.20.1-r2
emerge -vp

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

Calculating dependencies ... done!
Dependency resolution took 1.16 s (backtrack: 0/20).

[ebuild  N     ] app-crypt/rpm-sequoia-1.10.2::gentoo  USE="openssl -debug -nettle" LLVM_SLOT="22 -20 -21" 33995 KiB
[ebuild  N     ] app-arch/rpm-4.20.1-r2::gentoo  USE="acl bzip2 dbus iconv nls openmp python readline sequoia sqlite zstd -audit -berkdb -caps -doc -lzma (-selinux)" LUA_SINGLE_TARGET="lua5-4 -lua5-3" PYTHON_SINGLE_TARGET="python3_14 -python3_12 -python3_13" 4429 KiB

Total: 2 packages (2 new), Size of downloads: 38424 KiB

Wall time
2.157 s vs. 0.078 s for portage-ng