portage-ng / portage / dev-lang / elixir / 1.16.3-r2
emerge -vp

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

Calculating dependencies ... done!
Dependency resolution took 1.05 s (backtrack: 0/20).

[ebuild  N     ] acct-group/epmd-0-r3::gentoo  0 KiB
[ebuild  N     ] acct-user/epmd-0-r3::gentoo  0 KiB
[ebuild  N     ] dev-lang/erlang-26.2.5.20:0/26.2.5.20::gentoo  USE="kpoll ssl -doc -emacs -java -odbc -sctp (-systemd) -tk -wxwidgets" 62833 KiB
[ebuild  N     ] dev-lang/elixir-1.16.3-r2::gentoo  USE="-test" 3282 KiB

Total: 4 packages (4 new), Size of downloads: 66115 KiB

Wall time
2.016 s vs. 0.055 s for portage-ng