Ah, I see. Compilation order is dependencies first, then the current project. Where current project is the one that has mix.exs in it when you did mix.compile. Dependencies are compiled first and they do not create a transitive association with the “current” project. Understandably so - libraries aren’t built to make assumptions about the projects that use them.
TLDR; A dependency depending on the consumer of the dependency isn’t going to work
