Michel Banagouro — BlogNotes, tutorials and thoughts on software, AI and product.https://mbanagouro.com.br/en-USWelcome to my bloghttps://mbanagouro.com.br/en/blog/welcome/https://mbanagouro.com.br/en/blog/welcome/First official post on the site. Expect real cases, architecture deep-dives and the day-to-day of a CTO in the Brazilian software market.Tue, 12 May 2026 00:00:00 GMTSolve the problem. Write code if necessary.https://mbanagouro.com.br/en/blog/solve-the-problem-write-code-if-necessary/https://mbanagouro.com.br/en/blog/solve-the-problem-write-code-if-necessary/How we delivered real value to one of our key e-commerce clients without building a single new feature.Thu, 12 Feb 2026 00:00:00 GMTDesign Pattern: Decorator — How I fixed constant e-commerce crashes without rewriting the whole systemhttps://mbanagouro.com.br/en/blog/design-pattern-decorator-ecommerce/https://mbanagouro.com.br/en/blog/design-pattern-decorator-ecommerce/This article is a follow-up to 'The day the e-commerce couldn't go down — and almost always did.' Here I show how the Decorator pattern solved a critical performance problem without touching any existing code.Fri, 16 Jan 2026 00:00:00 GMTThe day the e-commerce couldn't go down — and almost always didhttps://mbanagouro.com.br/en/blog/ecommerce-that-couldnt-go-down/https://mbanagouro.com.br/en/blog/ecommerce-that-couldnt-go-down/How a recurring crash problem at Centauro taught me that performance is almost never about new technology — it's about understanding the right problem.Wed, 14 Jan 2026 00:00:00 GMT