Note that the Chez startup time isn't that good, and even the current Racket startup time is not great (node is still maybe 5x faster to start up). We'd really

Note that the Chez startup time isn't that good, and even the current Racket startup time is not great (node is still maybe 5x faster to start up). We'd really like to improve this as well, but it's hard if you don't want to have your whole standard library linked into the binary.