This is a modern plain format for the LuaTeX engine, adding improved low-level support for many LuaTeX extensions and newer PDF features. While it can be used as drop-in replacement for plain TeX, it probably is most useful as a basis for your own formats. Most features included in the format are provided by separate packages that can be used on their own; see the packages minim-mp for mplib (MetaPost) support minim-math for unicode mathematics minim-pdf for creating Tagged PDF minim-xmp for XMP (metadata) inclusion This package contains only their shared lowest-level programming interface, along with their combined format.