I invented this over 10 years ago and called it Pebbles. Got some stars on GitHub. I convinced Memrise to use it in production and it helped them speed up dev a

I invented this over 10 years ago and called it Pebbles. Got some stars on GitHub. I convinced Memrise to use it in production and it helped them speed up dev a lot. https://github.com/jperla/pebbles https://github.com/jperla/pebbles Later when I worked at Facebook I saw that someone later made a similar library internally.