Pedro Massango — Articles https://pedromassango.com/articles/ Thoughts on software engineering, productivity, and building things. en-us Sat, 30 May 2026 19:22:51 GMT How I built a personal expense and budget tracker with Flutter and Gemini https://pedromassango.com/articles/how-i-built-a-personal-expense-budget-tracker-with-flutter-and-gemini/ https://pedromassango.com/articles/how-i-built-a-personal-expense-budget-tracker-with-flutter-and-gemini/ Sun, 17 May 2026 00:00:00 GMT A technical walkthrough of how I built Peggy with Flutter, Supabase, and Gemini patterns: secure AI parsing, cache-first UX, and reliable money modeling. Four lessons from shipping the Leben in Deutschland Test app https://pedromassango.com/articles/lessons-from-shipping-leben-in-deutschland/ https://pedromassango.com/articles/lessons-from-shipping-leben-in-deutschland/ Sat, 11 Apr 2026 00:00:00 GMT What I wish I had known before releasing the first version of my German naturalization test study app: analytics, crash reporting, onboarding, and ads.