I’m working on a library and I’d like to include a check on if an optional dependency has been included. The easy part is adding {:some_dependency, "~> 1.0", optional: true} but after that it would be nice to have a (preferably official) guide. It seems like in your code you would have Code.ensure_loaded?(SomeDependencyModule) where SomeDependencyModule is a module that you know exists from :some_dependency.

However if you use Code.ensure_loaded? to optionally compile a module or function, your code will not get recompiled automatically if that dependency is later added to the top-level project, is there a way around that?