Develop console applications once and run them either on nodejs or natively (Fmlib.Io).
Develop interactive web applications in the Elm style.
Combinator parser in the style of parsec which fully supports indentation sensitivity and incremental parsing. The incrementality guarantees, that the parser can run in any environment including a web browser.
Fmlib.Pretty_print: A pretty printer to output nicely formatted text and error messages (similar to Stdlib.Format, but fully monadic to run in any environment).
Library of basic datastructures allowing functional monadic programming (Fmlib).