This actually touches upon a subject I hold dear. For .net development, I use SimpleInjector, not because it is the best and most flexible DI container, but because it is deliberately designed to make it impossible to do things that are wrong following best practice.
Sometimes it is annoying that it lacks the flexibility, but it always means we just have to do the refactoring now, rather than let the code rot. A Lead Dev should always keep this in mind, choose tools that make the right way the easiest and possibly only way forward. A mono repo is an example of a tool that gives superb knowledge and flexibility, but it requires some serious discipline to avoid a rapidly growing complexity.
Sometimes it is annoying that it lacks the flexibility, but it always means we just have to do the refactoring now, rather than let the code rot. A Lead Dev should always keep this in mind, choose tools that make the right way the easiest and possibly only way forward. A mono repo is an example of a tool that gives superb knowledge and flexibility, but it requires some serious discipline to avoid a rapidly growing complexity.