https://github.com/joelparkerhenderson/architecture_decision...

See the `examples` directory for real ADRs, such as for CSS frameworks (e.g. Bulma), secrets storage (e.g. Bitwarden, Vault), programming language stack (e.g. Typescript, Rust), etc.

Makes it easy to understand the reasoning behind a lot of decisions.

This one was my first exposure to ADRs. I liked how they went with something standard instead of doing the blockchain traditional X Improvement Proposal (BIP, EIP).