Wow, that's seriously off topic for a post about build systems, isn't it? :) The Rust ecosystem does not support "compiler plugins" well (by contrast, this is

Wow, that's seriously off topic for a post about build systems, isn't it? :) The Rust ecosystem does not support "compiler plugins" well (by contrast, this is a first-class concept in Kotlin). What is being actively pursued is "procedural macros," but we're running into the limitations of those - we're moving away from them for deriving lenses, for example. I'm sure it would also bring up lifetime issues, but, to be fair, those are probably similar to issues for async, and that only took a couple of years or so to land. But people are actively thinking about using generators for UI. I do think this is one of the open questions. It might be that really first-rate reactivity does require language support in some way. But this feels like like increasing the scope of an already possibly overambitious problem.