I’ve never seen this implemented well in a real-time setup. I’ve come to associate it with everything falling apart and otherwise being taped together in weird ways to function.

It sounds elegant, but I’m not convinced there’s a benefit to a model of abstractions of abstractions like this unless it’s done at the language level. In practice, I’ve only seen this produce a web of race conditions, performance issues, and system complexity. My experience is anecdotal.