> Not all Erlang/OTP functionality is included in this library. Some is not possible to represent in a type safe way, so it is not included. Other features are still in development, such as further process supervision strategies.

It seems like they are re-implementing a half baked OTP lookalike, but they aren’t actually using Erlang/OTP under the hood which gives me pause as the Erlang/OTP implementation has been battle tested over many decades now whereas the gleem implementation is a complete rewrite.