One of the ones I recall seeing (and can't remember) allowed you to use your own Digital Ocean/AWS instance instead of using theirs. I've also seen an old post

One of the ones I recall seeing (and can't remember) allowed you to use your own Digital Ocean/AWS instance instead of using theirs. I've also seen an old post on reddit suggesting a DIY instance of Codebox (https://github.com/CodeboxIDE/codebox https://github.com/CodeboxIDE/codebox) but it no longer appears to be updated. The others I've heard of are Koding (https://koding.com/features/solo#get-started https://koding.com/features/solo#get-started), Codio (https://codio.com https://codio.com), and Runnable (https://runnable.io/ https://runnable.io/, doesn't appear to be an IDE).