Not OP, but if you're looking for something to search for, I suspect they're describing "Pure DI" or using a "Composition Root". https://blog.ploeh.dk/2014/06/

Not OP, but if you're looking for something to search for, I suspect they're describing "Pure DI" or using a "Composition Root". https://blog.ploeh.dk/2014/06/10/pure-di/ https://blog.ploeh.dk/2014/06/10/pure-di/ https://stackoverflow.com/questions/6277771/what-is-a-composition-root-in-the-context-of-dependency-injection https://stackoverflow.com/questions/6277771/what-is-a-compos...