Currently, sys-libs/basu::crocket-overlay is depended on by gui-wm/sway::crocket-overlay. basu can replace elogind and systemd as a dbus API provider. Reproducible: Always
https://github.com/swaywm/sway/blob/4e77bc293515ea2f00ebbc4395cb0eb4446d0195/meson_options.txt#L9 informs us that `sd-bus-provider` build option is available. The option can be used to choose basu.
Until basu hits the main repo we can't depend on it. Nice to have an alternative to elogind though.
You can add basu yourself. It's not difficult to add.