[notes] Big Packages or Many Dependencies

I have never seen these documented, but they are useful!

Caught between the desire to make good art for the joy of it and knowing I will never be Beethoven or Mozart.

Make sure your data structures safely make it through serialization-deserialization roundtrips and vice versa, or you will have a bad time!

Make sure that every value you need to use in a minijinja template function implements `serde::Deserialize`, or you will have a bad time.

Historically, conditional types only gave you type safety on the caller side. Now, for a key subset, they give you safety within a function, too.