I have been using thiserror, and somtimes snafu, for error handling in libraries and anyhow for error handling in applications.
This blog post describes a new library, Stackerror, that looks interesting. The post also gives a good overview of error handling in Rust.
I may be wrong since it seemed to mostly gloss over deriving new errors, but this article gave me the impression that it’s not much different from a predefined
thiserrortype.