The standard library is not a validator: 72 hours of zero-dependency JSON in Rust

I spent last weekend building a JSON toolkit in Rust under one rule: no third-party dependencies . Not "few". None.

Source: [Dev.to](https://dev.to/pal11103/the-standard-library-is-not-a-validator-72-hours-of-zero-dependency-json-in-rust-afj)