AI Software Engineer at Clerk and Founder of Crafter Station. Building open-source developer tools, winning hackathons, and growing Peru's tech ecosystem from Lima.https://www.railly.dev/en-ushttps://www.railly.dev/blog/agentic-second-brain/https://www.railly.dev/blog/agentic-second-brain/I open every coding session from an Obsidian vault. Claude Code and Codex know my 20+ repos, scaffold apps to production in 2 minutes, and warn me when I'm repeating old mistakes.Tue, 31 Mar 2026 00:00:00 GMTaiobsidianclaudecodexproductivityknowledge-managementopen-sourcehttps://www.railly.dev/blog/2000-stars-later/https://www.railly.dev/blog/2000-stars-later/From a VS Code theme to a Silicon Valley job. How building in public from Lima, Peru opened doors I didn't know existed.Sat, 14 Mar 2026 00:00:00 GMThttps://www.railly.dev/blog/skill-kit/https://www.railly.dev/blog/skill-kit/Track usage, measure context budget, and prune what you don't use. Zero telemetry.Sun, 22 Feb 2026 12:00:00 GMTaiengineeringclaudeagentsopen-sourceclihttps://www.railly.dev/blog/design-engineering/https://www.railly.dev/blog/design-engineering/You don't have to choose between design and code. The most valuable people in tech do both.Sat, 21 Feb 2026 00:00:00 GMTdesign-engineeringmentoringcareerdesignintersectional-skillshttps://www.railly.dev/blog/figma-claude-code-bidirectional/https://www.railly.dev/blog/figma-claude-code-bidirectional/Figma shipped Code to Canvas on Feb 17. I tested the full round-trip: Figma frame to Astro component, back to editable Figma layers, edit colors in Figma, read the change in Claude Code. Here's the real workflow.Sat, 21 Feb 2026 00:00:00 GMTfigmaclaude-codemcpdesign-engineeringworkflowhttps://www.railly.dev/blog/what-4-developers-asked-me/https://www.railly.dev/blog/what-4-developers-asked-me/English, remote work, and getting visible. Every mentoring call comes down to the same three questions.Sun, 15 Feb 2026 00:00:00 GMTmentoringcareerenglishbuilding-in-publicremote-workhttps://www.railly.dev/blog/skill-gen/https://www.railly.dev/blog/skill-gen/Auto-generate agent skills from documentation. Point it at docs, get back a working skill.Wed, 04 Feb 2026 00:00:00 GMTaiengineeringclaudeagentsmetahttps://www.railly.dev/blog/intent-layer/https://www.railly.dev/blog/intent-layer/A skill that sets up hierarchical AGENTS.md files so AI agents navigate your codebase like senior engineers.Sun, 18 Jan 2026 00:00:00 GMTaiengineeringclaudeagentsopen-sourcehttps://www.railly.dev/blog/on-ai-detox/https://www.railly.dev/blog/on-ai-detox/A reflection on learning with intention, cultivating your own judgment, and stop renting knowledge in the age of artificial intelligenceSat, 27 Dec 2025 00:00:00 GMTailearningthoughtsreflectionhttps://www.railly.dev/blog/learn-build-share-ethics/https://www.railly.dev/blog/learn-build-share-ethics/A personal reflection on the core message of my talk at the IV Encuentro de Graduados de la UNMSM.Thu, 27 Nov 2025 00:00:00 GMTengineeringperuopen-sourcemindsetuniversitiestalkshttps://www.railly.dev/blog/how-i-study-math/https://www.railly.dev/blog/how-i-study-math/Improving math learning with a mix of technology and effective study techniquesSun, 25 Aug 2024 00:00:00 GMTmathlearningstudy techniqueshttps://www.railly.dev/blog/how-to-setup-python-environment/https://www.railly.dev/blog/how-to-setup-python-environment/A comprehensive guide for developers on setting up a Python environment with Jupyter Notebook in Visual Studio Code. This walkthrough covers installation, configuration, and essential tips for maximizing productivity on Windows.Mon, 06 Nov 2023 00:00:00 GMTpythonjupytervscodetutorialdevelopment