Check out flow-runtime [0] [1]. I've only poked around with it, but it seemed solid. It supports pragmas so you can turn off assertions in production everywher

Check out flow-runtime [0] [1]. I've only poked around with it, but it seemed solid. It supports pragmas so you can turn off assertions in production everywhere except in critical files. [0] https://github.com/codemix/flow-runtime https://github.com/codemix/flow-runtime [1] https://codemix.github.io/flow-runtime/ https://codemix.github.io/flow-runtime/