I've built some docker build infrastructure which attempts to optimize build times and reduce cost of incremental builds. I was able to take a monolithic binary

I've built some docker build infrastructure which attempts to optimize build times and reduce cost of incremental builds. I was able to take a monolithic binary artifact which cost around 350mb per build down to less than 40mb by more intelligent layering. If you haven't found it already, `--cache-from` with the previously built stable image makes this relatively painless. I've been considering writing a merge tool to support fork/merge semantics, focussing more on development and debugging than build-time optimization.