rpi-eeprom : Updater for Raspberry Pi 4 bootloader and the VL805 USB controller ( https://github.com/raspberrypi/rpi-eeprom/ )
rpi-utils : Misc useful commands for Raspberry Pis ( https://github.com/raspberrypi/utils )
Add an ebuild in portage :
The ebuild is now in the portage tree.
You can also use layman : emerge layman then layman -a phoenix591
For Paludis use this rsync : rsync://gentoo.zugaina.org/phoenix591-portage
If you have a problem : ycarus(-at-)zugaina.org