https://blog.rafaelfernandez.dev/tags/software/ Recent content in Software on Home Hugo -- gohugo.io en © 2026 Rafael Fernandez Thu, 08 Jan 2026 00:00:00 +0000 https://blog.rafaelfernandez.dev/posts/todo-cli-rust-1-hexagonal-architecture/ Thu, 08 Jan 2026 00:00:00 +0000 https://blog.rafaelfernandez.dev/posts/todo-cli-rust-1-hexagonal-architecture/ We kick off the series by building a To-Do CLI in Rust from CodeCrafters’ Project #1, but without turning it into a giant script. We cover architecture decisions, layer boundaries, and why a small project can also teach you serious design. https://blog.rafaelfernandez.dev/posts/setting-sail-clean-setup-docker-jupyter-rustrover/ Sun, 20 Jul 2025 00:00:00 +0000 https://blog.rafaelfernandez.dev/posts/setting-sail-clean-setup-docker-jupyter-rustrover/ A practical guide to setting up a clean and reproducible environment with Docker, Jupyter, and RustRover to work with Sail, whether as a user or contributor. From launching services with docker-compose to debugging locally without installing any dependencies on your machine. https://blog.rafaelfernandez.dev/posts/sail-sailing-through-giants-and-sparks/ Wed, 16 Jul 2025 00:00:00 +0000 https://blog.rafaelfernandez.dev/posts/sail-sailing-through-giants-and-sparks/ In this article, I share my critical view on the current state of data engineering, dominated by heavyweight platforms like Spark and Databricks, and introduce Sail, an open-source engine built on top of Apache Arrow and DataFusion, written in Rust, that offers a new path: lightweight, efficient, and powerful. https://blog.rafaelfernandez.dev/posts/dunning-kruger-effect-as-a-service/ Sat, 12 Jul 2025 00:00:00 +0000 https://blog.rafaelfernandez.dev/posts/dunning-kruger-effect-as-a-service/ The conclusion warns that the real risk isn’t using AI, but delegating to it without critical thinking. In a chain where everyone pretends to know thanks to AI, decisions are built on illusions. The result: projects that appear viable, endorsed by experts who no longer think. A black swan foretold by collective complacency. https://blog.rafaelfernandez.dev/posts/hey-chat-its-not-you-its-me/ Thu, 10 Jul 2025 00:00:00 +0000 https://blog.rafaelfernandez.dev/posts/hey-chat-its-not-you-its-me/ This essay explores how the everyday use of AI tools like ChatGPT and Copilot can transform the way we work, learn, and think, creating a false sense of knowledge. A critical reflection on dependence, boundaries, and the need to preserve judgment in an increasingly automated world.