I tried out a few of the error handling libraries, but these days I reverted to just defining a simple Enum with the types of errors that occur in my library, f

I tried out a few of the error handling libraries, but these days I reverted to just defining a simple Enum with the types of errors that occur in my library, for most use cases that seems to be the simplest thing to do. I implement `std::error::Error` and `std::fmt::Display` for that enum and add `From` implementations as I need them to tidy up my code. It's usually not much more code than I would have written with an error handling library and it's fully transparent, understandable for anyone with a rudimentary understanding of Rust. And I get to have one less dependency.