asciidoc : A plain text human readable/writable document format ( https://asciidoc.org/ https://github.com/asciidoc/asciidoc-py3/ )
calibre : Ebook management application ( https://calibre-ebook.com/ )
gocr : An OCR (Optical Character Recognition) reader ( http://jocr.sourceforge.net )
Add an ebuild in portage :
The ebuild is now in the portage tree.
You can also use layman : emerge layman then layman -a poly-c
For Paludis use this rsync : rsync://gentoo.zugaina.org/poly-c-portage
If you have a problem : ycarus(-at-)zugaina.org