Sharing insights on Software Engineering, AI, and technology.https://eugenioestrada.es/en-UShttps://eugenioestrada.es/en/blog/physical-key-architecture/https://eugenioestrada.es/en/blog/physical-key-architecture/Technical and economic analysis of using advanced passive NFC cards with a secure element as a physical key of ownership in the post-disc era. <br/><br/> <a href="https://eugenioestrada.es/en/blog/physical-key-architecture/">Read full article</a>Sat, 04 Jul 2026 00:00:00 GMThttps://eugenioestrada.es/en/blog/sonnet-5-the-death-of-the-premium-model/https://eugenioestrada.es/en/blog/sonnet-5-the-death-of-the-premium-model/Claude Sonnet 5 reaches Opus 4.8 capability on agentic tasks at 40% of the price. What this means for your model selection strategy. <br/><br/> <a href="https://eugenioestrada.es/en/blog/sonnet-5-the-death-of-the-premium-model/">Read full article</a>Wed, 01 Jul 2026 00:00:00 GMThttps://eugenioestrada.es/en/blog/git-worktrees/https://eugenioestrada.es/en/blog/git-worktrees/Git Worktree allows you to work on multiple branches simultaneously in isolation. Learn how it eliminates context switching in the age of AI coding assistants. <br/><br/> <a href="https://eugenioestrada.es/en/blog/git-worktrees/">Read full article</a>Tue, 30 Jun 2026 00:00:00 GMThttps://eugenioestrada.es/en/blog/the-copilot-illusion/https://eugenioestrada.es/en/blog/the-copilot-illusion/AI tools reduce the cost of writing code to zero, but multiply software complexity and technical debt without clear architecture boundaries and code governance. <br/><br/> <a href="https://eugenioestrada.es/en/blog/the-copilot-illusion/">Read full article</a>Mon, 29 Jun 2026 00:00:00 GMThttps://eugenioestrada.es/en/blog/cognitive-load-as-a-design-constraint/https://eugenioestrada.es/en/blog/cognitive-load-as-a-design-constraint/The optimal architecture respects teams' cognitive limits rather than minimizing only technical coupling. Conway's Law, Team Topologies and design physics. <br/><br/> <a href="https://eugenioestrada.es/en/blog/cognitive-load-as-a-design-constraint/">Read full article</a>Fri, 26 Jun 2026 00:00:00 GMThttps://eugenioestrada.es/en/blog/the-power-of-asynchrony/https://eugenioestrada.es/en/blog/the-power-of-asynchrony/Explore the benefits of event-driven architectures (EDA) and how to overcome their technical challenges of consistency, ordering, and idempotency. <br/><br/> <a href="https://eugenioestrada.es/en/blog/the-power-of-asynchrony/">Read full article</a>Thu, 25 Jun 2026 00:00:00 GMThttps://eugenioestrada.es/en/blog/the-tyranny-of-the-network/https://eugenioestrada.es/en/blog/the-tyranny-of-the-network/Why the speed of light and serialization overhead impose physical limits on distributed architectures. A practical guide to network latency. <br/><br/> <a href="https://eugenioestrada.es/en/blog/the-tyranny-of-the-network/">Read full article</a>Wed, 24 Jun 2026 00:00:00 GMThttps://eugenioestrada.es/en/blog/frankenstein-architecture/https://eugenioestrada.es/en/blog/frankenstein-architecture/How agentic AI accelerates software entropy without proper governance. Strategies and tools to define design boundaries and prevent technical debt. <br/><br/> <a href="https://eugenioestrada.es/en/blog/frankenstein-architecture/">Read full article</a>Tue, 23 Jun 2026 00:00:00 GMThttps://eugenioestrada.es/en/blog/the-illusion-of-code-coverage/https://eugenioestrada.es/en/blog/the-illusion-of-code-coverage/Why chasing 100% code coverage with heavily mocked unit tests couples your design, masks integration bugs, and compromises production safety. <br/><br/> <a href="https://eugenioestrada.es/en/blog/the-illusion-of-code-coverage/">Read full article</a>Mon, 22 Jun 2026 00:00:00 GMThttps://eugenioestrada.es/en/blog/the-importance-of-context-in-ai/https://eugenioestrada.es/en/blog/the-importance-of-context-in-ai/Why functional and technical context, alongside acceptance testing and traditional design principles, remain crucial for developing robust software with Artificial Intelligence. <br/><br/> <a href="https://eugenioestrada.es/en/blog/the-importance-of-context-in-ai/">Read full article</a>Sun, 21 Jun 2026 00:00:00 GMT