Docker came about as the answer to the “it works on my machine” problem. What it does is bundle everything your application should need into a box so that you can run it basically everywhere.

For Dev’s this also means that if it runs for you it should run for everyone.

Since docker came out we’ve had a lot of advancement in compilers & interpreters, it’s generally pretty easy to compile to another platform today and it’s pretty rare for an interpreter to have a meltdown because of your OS. I imagine we’ll see less docker going forwards but enterprise is slow moving.