einhorn [1] implements this model and is pretty effective. Used in production at Stripe and other places. (It's written in Ruby, but can run application proce

einhorn [1] implements this model and is pretty effective. Used in production at Stripe and other places. (It's written in Ruby, but can run application processes in any language.) [1] https://github.com/stripe/einhorn https://github.com/stripe/einhorn