In brief: Clean code rules should make the next change easier to make and harder to get wrong. Separate concerns so one change does not ripple through unrelated parts. DRY the rules and facts that must stay consistent, not every pair of similar lines. KISS by choosing the clearest design that meets the real need. […]
Quick summary Prototype to learn sooner: test a specific user assumption with a small interaction. Separate possibility from value: a working demo does not establish usefulness or trust. Keep judgement central: research, design trade-offs and technical ownership remain essential. Invest after learning: decide what deserves production work. AI product development now has a much cheaper […]
Quick summary Business rules should not depend directly on HTTP, SQL or a broker. SOLID keeps modules understandable; it does not prescribe an entire system. DDD earns its cost where business language and rules are complex. Events decouple completed facts from follow-up work, while adding delivery and consistency trade-offs. A feature request looks small until […]