linux-wifi-hotspot : Feature-rich wifi hotspot creator for Linux which provides both GUI and command-line interface ( https://github.com/lakinduakash/linux-wifi-hotspot )
rtlsdr-airband : converts analog broadcast radio to audio streams ( ttps://github.com/charlie-foxtrot/RTLSDR-Airban )
Add an ebuild in portage :
The ebuild is now in the portage tree.
You can also use layman : emerge layman then layman -a salfter
For Paludis use this rsync : rsync://gentoo.zugaina.org/salfter-portage
If you have a problem : ycarus(-at-)zugaina.org