This is a fork of the Linux Libertine and Linux Biolinum fonts that started as an OpenType math companion of the Libertine font family, but grown as a full fork to address some of the bugs in the fonts. The family consists of: Libertinus Serif: forked from Linux Libertine. Libertinus Sans: forked from Linux Biolinum. Libertinus Mono: forked from Linux Libertine Mono. Libertinus Math: an OpenType math font for use in OpenType math-capable applications like LuaTeX, XeTeX or MS Word 2007+.