These ebuilds come from https://github.com/l29ah/booboo.
If you have some problems, go to the official site first.
vimprobable : Vimprobable is a WWW browser that behaves like the Vimperator plugin available for Mozilla Firefox based on the WebKit engine using GTK bindings. ( http://www.yllr.net/vimprobable/ )
Add an ebuild in portage :
The ebuild is now in the portage tree.
You can also use layman : emerge layman then layman -a l29ah
For Paludis use this rsync : rsync://gentoo.zugaina.org/l29ah-portage
If you have a problem : ycarus(-at-)zugaina.org