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I feel like there would be a HUGE amount of ecosystem value for Rust and async/await, if there was funding and the right dev(s) available to focus on improving: * Memory usage + copies of futures/async fns: particularly wrt overlapping data across yield * Improving codegen size/perf * opt-footguns

None of these are *deal breakers*: and should not be a reason to NOT use async/await, IMO. But on embedded we feel the pain of increased code size + ram usage much more acutely, and sometimes it requires being careful to avoid pathological cases. That doesn't feel good.