ruby@gentoo.org Gentoo Ruby Project asciidoctor/asciidoctor-diagram Enable diagrams with dev-ruby/rqrcode and dev-ruby/barby Enable diagrams with media-gfx/ditaa Enable diagrams with media-sound/lilypond Enable diagrams with media-gfx/imagemagick Enable diagrams with media-gfx/mscgen Enable diagrams with media-gfx/plantuml Enable diagrams with dev-tex/pgf