Handle errors. Naked .unwrap()s aren't allowed, except for in unit tests.
Exceptions must be accompanied by a note justifying usage.
In most cases where an exception can be made (E.g., parsing a static value) .expect() with a relevant message should be used over a naked unwrap.
Write descriptive error messages that give context of the problem that occurred. Error messages should be unique, to aid with debugging.
Meaningful error types should be used in place of Result< _, String>.
General errors should use the anyhow crate.
Custom / typed errors should derive from the std::error::Error trait. The thiserror