[jpgleeson]

These are the sort of issues that Nix <https://nixos.org/> solves quite well. Pinning dependencies to specific versions so the only time dependencies change is when you explicitly do it - and the only packages present in your images are ones you specifically request, or dependencies of those packages. It also gives you local dev environments using the ~same dependencies by typing `nix develop`.

Once you get past the bear that is the language, it's a great tool.

[chambored]

I found setting up nix shells to be more time consuming than docker setups. Nixpkgs can require additional digging to find the correct dependencies that just work on other distributions. That being said, I’m a huge fan of NixOS, but I haven’t seen it as a replacement for docker for reproducible dev environments yet.