I've been using https://github.com/biw/enwrap (disclaimer: I wrote it) in TypeScript and have found that the overhead it adds is well worth the safety it adds when handling and returning errors to users.
That said, I see parallels between the debate about typed vs. non-typed errors and the debate of static typing vs. dynamic typing in programming languages.
Author of the post here. I also see this parallel in error handling discussions. But seems like it's much harder to sell error handling than static typing. Static typing was also much more debatable in the past then now so maybe same can happen to error handling mechanisms in the future as well.
Your project seems very interesting! Typescript is sophisticated enough to model complex Result-like types that can narrow-widen error cases throughout the code. I will check it more if I find the time.
With errors, it's hard since many languages can throw errors anywhere, so it's hard to feel like any function is "safe" in terms of error handling. That's one of the reasons why `enwrap` returns a generic error alongside any other result: to support incremental adoption.
If you have a chance to check out `enwrap` and have feedback, email me! (link in bio)