Show HN: Hedonjs – Repl on Steroids

This really needs an introduction of some kind. There's just a 1000 line single js file. Please warm us up some.

The only reference I could find to have any idea what to expect was a help section, which I found in the source[1]. I'm curious what fragments are and what the intent is in this repl. But I'm also not going to download & try it out to find out, not without some prompting.

[1] https://github.com/hedonjs/hedonjs/blob/master/hedon.js#L81