nihstro : 3DS shader assembler and disassembler ( https://github.com/neobrain/nihstro )
pmbootstrap : Sophisticated chroot/build/flash tool to develop and install postmarketOS. ( https://postmarketos.org/ https://gitlab.com/postmarketOS/pmbootstrap/ )
Add an ebuild in portage :
The ebuild is now in the portage tree.
You can also use layman : emerge layman then layman -a menelkir
For Paludis use this rsync : rsync://gentoo.zugaina.org/menelkir-portage
If you have a problem : ycarus(-at-)zugaina.org