I wrote this on another thread recently, but my line for exclusion from standard library is a library that’s any one of: - not obviously/generally useful (i.e.

I wrote this on another thread recently, but my line for exclusion from standard library is a library that’s any one of: - not obviously/generally useful (i.e. useless or too specific/should be a program not a library) - obviously trivial (code it yourself when you need it/compose from other primitives) - already available (open source) elsewhere by a credible team that supports and maintains it Anything else… put it in the stdlib