Husband, dad, latter-day saint, and programmer. I like write code and sometimes words. 🇧🇷 🇺🇸https://new.lucasacastro.com/https://new.lucasacastro.com/writing/working-trinsic/https://new.lucasacastro.com/writing/working-trinsic/A reflection of my time working at an early-stage startupThu, 31 Jul 2025 00:00:00 GMThttps://new.lucasacastro.com/writing/auth-101/https://new.lucasacastro.com/writing/auth-101/A survey of auth concepts, practices, and strategiesFri, 07 Mar 2025 00:00:00 GMThttps://new.lucasacastro.com/writing/authentication-resources/https://new.lucasacastro.com/writing/authentication-resources/A curated collection of the best resources for understanding internet identity, security, and authenticationFri, 12 Sep 2025 00:00:00 GMThttps://new.lucasacastro.com/writing/knowledge-intel-wisdom/https://new.lucasacastro.com/writing/knowledge-intel-wisdom/Wisdom separates adepts from expertsTue, 14 Oct 2025 00:00:00 GMThttps://new.lucasacastro.com/writing/interview-prep/https://new.lucasacastro.com/writing/interview-prep/Resources, etiquette, and practical advice for technical interviewsFri, 25 Jul 2025 00:00:00 GMThttps://new.lucasacastro.com/writing/networking/https://new.lucasacastro.com/writing/networking/Networking sucks, rarely works, and it isn't a serious job-hunting strategyMon, 18 Aug 2025 00:00:00 GMThttps://new.lucasacastro.com/writing/learn-with-llms/https://new.lucasacastro.com/writing/learn-with-llms/Practical dos and don'ts for integrating LLMs into your learning processFri, 25 Jul 2025 00:00:00 GMThttps://new.lucasacastro.com/writing/state-of-distrust/https://new.lucasacastro.com/writing/state-of-distrust/A mental model for reasoning about authentication using sessions, tokens, and exchangesFri, 12 Sep 2025 00:00:00 GMT