### Tasks
- [x] file issue/discuss with Fastify maintainers: https://github.com/fastify/fastify/issues/4917
- [x] write down my thoughts, friction, and feedback for OpenSSF as I go through it
- [x] make a PR to add the badge to the project, and merge it (https://github.com/fastify/fastify/pull/4926)
- [x] https://github.com/fastify/fastify/pull/5111 - Writeup on why this badge is what it is, add to readme