Back in 2013 before I took a job at amazon but after working with a game dev for playstation I had 2 months off, playing with docker I realized how good it's be for crap like chroot jail dev or multi-project dev env isolation. There were big blockers for it being used this way then. I did some chatting with the docker team and we did push things a little in that direction. But the vision was still about running in prod.

To their credit the docker folks I talked with did listen and respond and move the needle (obviously) on it being a local dev tool, so I cheer them for that.

I use it all the time in my windows box for dev. Tho I do try and keep my software able to run on any os.