This is a Haskell library and command-line tool for parsing the djot light markup language.
The parser reads a ByteString and builds an AST. An HTML renderer and a Djot renderer are included.
For an example of its use, see app/Main.hs.
The parser has very good performance. For example, it is 8X faster than commonmark-hs on comparable input with comparable extensions enabled, and more than twice as fast as djot.js.