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I made a rust library for parsing env vars. Environment variable parser with a clap style derive macro and elm style error reporting. github.com/frectonz/par...

How would you compare it to `envy` crates.io/crates/envy ?

`parenv` is more similar to using clap with `env` support, it's not a serde deserializer, it also generates nice error reports for you when users don't provide the required environment variables

This is an example of envy usage taken from their readm, you can see that it doesn't handle error reporting for you