the default atom_naming_convention is too strict

[zhongwencool]

crypto:hash(sha3_256, Bin)

https://www.erlang.org/doc/man/crypto.html#type-cipher the _xxx xxx is a digit number should be allowed.

[elbrujohalcon]

Not a bad idea. We'll likely accept a PR that allows numbers in atoms as long as the atom doesn't just contain numbers.