fprintd : D-Bus service to access fingerprint readers ( https://cgit.freedesktop.org/libfprint/fprintd/ )
libfprint : Library to add support for consumer fingerprint readers ( https://gitlab.freedesktop.org/libfprint/libfprint )
Add an ebuild in portage :
The ebuild is now in the portage tree.
You can also use layman : emerge layman then layman -a tatsh-overlay
For Paludis use this rsync : rsync://gentoo.zugaina.org/tatsh-overlay-portage
If you have a problem : ycarus(-at-)zugaina.org