Quite often, one of the most time-taking parts of the build process is the installation of dependencies. This process is traditionally slow because package managers choose stability over performance. And this perfectly makes sense: if something terrible happens, the system must remain in a usable state. However, stability is not very important when building an image: if the build fails, the system discards the image, and you have to start over. This post provides some tips on how to use ea...
