I see that cameleon uses anyhow::Error, but very lightly: https://github.com/search?q=repo%3Acameleon-rs%2Fcameleon%20anyhow&type=code (only for 2 Io error variants).

Anyhow specifically isn't designed for library errors, so it would be best to replace these with something different, perhaps custom thiserror-derived errors (which has a benefit of not ending up in the crate signature).

A nice side-effect would be removing the dependency (for people that don't use anyhow in their apps).

Or @Y-Nak do you recall having a specific reason to use anyhow? CC @bschwind @mbernat.