Thanks, I will explore volumes for deps. Although my idea with multi stages was supposed to take care about deps and libs. It would compile them in base, but then still run mix deps.get and compile in the next stage when you start it. So if mix.exs hasn’t changed - nothing would be done. But if you added anything new, it would add and compile only that.
But regardless, now I’m just curious why copying deps from base image didn’t work.
