Hosted here:

https://github.com/c9/core/

Notable tech: Emmet (snippets, HTML autocomplete), Engine.IO (web-sockets), MsgPack (message serialization), RuSHA (browser-based SHA1), Tern (code analysis, AST etc), Acorn (JS code analysis, faster than Tern)

I've been waiting for this to finally start to come along -- you can see the trajectory of AWS/GCP/Azure/etc to be fully hosted development platforms.

I switched to cloud-dev about a year ago. Took some getting used to, but I can't imagine going back to local-dev now.

Oops! Two different people each submitted about the same topic: https://news.ycombinator.com/item?id=15817544

It seems to be the final step of the integration of the Amsterdam based startup. Cool job guys