>>simonw+(OP)
as a guy who is not in loop with all these sandbox developments, I apologize for this extremely stupid question. Why do we need any of these sandboxes? Why cant we use docker? I thought it was a solved problem 10 yrs ago?
>>vivzke+uo
I think one difference is that it also provides the service of being a production environment you can serve from at the same time as development. There's more information about this thought in the fly io blog post.