Building Software — Reports https://buildingsoftware.app/reports.html Field notes, postmortems, retros, and case studies from the Architecture Field Guide. en Wed, 06 May 2026 00:00:00 GMT Welcome to the Reports https://buildingsoftware.app/reports/welcome.html https://buildingsoftware.app/reports/welcome.html A short note on what these reports are and how the markdown-driven format works. Wed, 06 May 2026 00:00:00 GMT meta getting-started Build vs. buy, two years later https://buildingsoftware.app/reports/build-vs-buy.html https://buildingsoftware.app/reports/build-vs-buy.html We built the auth stack ourselves. Here's the bill — in engineer-months, on-call pages, and opportunity cost. Wed, 22 Apr 2026 00:00:00 GMT build-vs-buy identity retrospective