Fizzy's Pull Requests: Who Built What and How - Sifting through Fizzy’s pull requests, it was fascinating to see how the 37signals team thinks through problems, builds solutions, and ships software together. Outside of their massive contributions to open source libraries, the podcast and the books — this was a chance to see up close, with real code, the application building process.

Below you will read which 37signals team members owned which domains in this project, and which PRs best demonstrate their craft. If you’re new to the codebase (or want to level up in specific areas), I will point you to the PRs worth studying. Each section highlights an engineer’s domain knowledge and the code reviews that showcase their thinking.

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