[netgusto]

It does indeed look like repl.it!

I'd say the main feature is owning the code you write (on your filesystem) which allows your scm on top of it.

Also, the cli mode (watch and run), which does not expose a web ui, and is nice in combination with tmux and vim.

If I ever get the chance to do it:

* Markdown file support

* Integration in vscode as a code runner

* Use Monaco (potentially with code insights) instead of Code Mirror