https://qevstudio.com/en/blog Articles on building digital products, AI workflows, and the future of web development. en https://qevstudio.com/en/blog/como-testee-un-motor-de-calculadora https://qevstudio.com/en/blog/como-testee-un-motor-de-calculadora 965 tests caught a floating-point bug that shifted results by 10%. These are the architecture decisions that make a calculator trustworthy. Mon, 15 Jun 2026 00:00:00 GMT qevdesign@gmail.com (Kevin Herrera) https://qevstudio.com/en/blog/workflow-de-diseno-augmentado-con-ia https://qevstudio.com/en/blog/workflow-de-diseno-augmentado-con-ia AI generates layouts, I make the calls. This is the exact workflow I use to ship design systems in days, with tokens defined before components. Wed, 10 Jun 2026 00:00:00 GMT qevdesign@gmail.com (Kevin Herrera)