Writing on the mind, technology, and cybersecurity.https://www.alejandroluis.comhttps://www.alejandroluis.com/blog/how-a-75-cent-error-uncovered-a-kgb-espionage-operationhttps://www.alejandroluis.com/blog/how-a-75-cent-error-uncovered-a-kgb-espionage-operationAn interesting story on how curiosity can lead us to the most unexpected and valuable findings.Wed, 28 Oct 2026 17:21:00 GMThttps://www.alejandroluis.com/blog/9-cybersecurity-habits-that-all-builders-should-havehttps://www.alejandroluis.com/blog/9-cybersecurity-habits-that-all-builders-should-haveBasic practices that we should integrate into our routines to harden our security but that are easy to forget in between so many things to do.Wed, 28 Oct 2026 17:15:00 GMThttps://www.alejandroluis.com/blog/7-lessons-from-securing-my-projects-secretshttps://www.alejandroluis.com/blog/7-lessons-from-securing-my-projects-secrets6 useful tips and 1 funny mistake I made while implementing the “Automic Vault” to secure my API keys, database URLs, and other sensitive secrets.Mon, 26 Oct 2026 16:40:00 GMThttps://www.alejandroluis.com/blog/how-i-secured-my-projects-secrets-using-a-tool-from-homebrews-creatorhttps://www.alejandroluis.com/blog/how-i-secured-my-projects-secrets-using-a-tool-from-homebrews-creatorHow watching a video from a top engineer helped me address a major cybersecurity vulnerability.Mon, 26 Oct 2026 16:07:00 GMThttps://www.alejandroluis.com/blog/how-i-patched-the-2-main-cybersecurity-vulnerabilities-of-detox-mentalhttps://www.alejandroluis.com/blog/how-i-patched-the-2-main-cybersecurity-vulnerabilities-of-detox-mentalHow my AI discussions with an unexpected person led me to increase the security of my app.Sun, 25 Oct 2026 15:48:00 GMThttps://www.alejandroluis.com/blog/how-feedback-from-users-shaped-the-onboarding-of-detox-mentalhttps://www.alejandroluis.com/blog/how-feedback-from-users-shaped-the-onboarding-of-detox-mentalWhy the stubbornness of creators should not get in the way of their products if they wish them to be successful.Thu, 22 Oct 2026 14:09:00 GMThttps://www.alejandroluis.com/blog/leave-code-a-bit-better-than-you-found-ithttps://www.alejandroluis.com/blog/leave-code-a-bit-better-than-you-found-itWhat to do when you discover the monstrosities that agents do from time to time.Sun, 18 Oct 2026 17:21:00 GMThttps://www.alejandroluis.com/blog/the-biggest-pivot-i-ve-made-as-a-product-builderhttps://www.alejandroluis.com/blog/the-biggest-pivot-i-ve-made-as-a-product-builderHow an essay from Y Combinator’s founder changed my perspective about what actually matters.Fri, 16 Oct 2026 11:30:27 GMThttps://www.alejandroluis.com/blog/why-you-should-have-a-journaling-practicehttps://www.alejandroluis.com/blog/why-you-should-have-a-journaling-practiceThe simple and powerful benefit of writing for even 10 minutes a few times a month.Wed, 14 Oct 2026 11:12:05 GMThttps://www.alejandroluis.com/blog/25-favorite-ideas-from-mastery-by-robert-greenehttps://www.alejandroluis.com/blog/25-favorite-ideas-from-mastery-by-robert-greeneFavorite ideas from a book that all builders/creators should read at some point in their lives.Sat, 10 Oct 2026 18:28:00 GMThttps://www.alejandroluis.com/blog/what-is-detox-mentalhttps://www.alejandroluis.com/blog/what-is-detox-mentalHow a legendary book written by an ancient emperor of Rome inspired a journaling app two millennia laterTue, 06 Oct 2026 17:25:11 GMThttps://www.alejandroluis.com/blog/how-i-choose-my-llm-models-for-token-efficiencyhttps://www.alejandroluis.com/blog/how-i-choose-my-llm-models-for-token-efficiencyThe simple rule I follow to select models without investing valuable time into learning which one is better for which task.Thu, 01 Oct 2026 19:05:00 GMThttps://www.alejandroluis.com/blog/what-goes-into-my-agents-md-filehttps://www.alejandroluis.com/blog/what-goes-into-my-agents-md-fileWhy my previous AGENTS file was hurting my workflow and the 5 things that remained after trimming it.Tue, 29 Sep 2026 17:38:00 GMThttps://www.alejandroluis.com/blog/hard-choices-easy-life-easy-life-hard-choiceshttps://www.alejandroluis.com/blog/hard-choices-easy-life-easy-life-hard-choicesWhy hard choices usually lead to a more fulfilling and satisfying life.Mon, 28 Sep 2026 13:29:49 GMThttps://www.alejandroluis.com/blog/17-favorite-principles-from-the-book-of-elon-by-eric-jorgensonhttps://www.alejandroluis.com/blog/17-favorite-principles-from-the-book-of-elon-by-eric-jorgensonFavorite ideas from reading a comprehensive compilation of ideas from the hated/beloved genius.Thu, 24 Sep 2026 18:18:00 GMThttps://www.alejandroluis.com/blog/how-do-i-decide-what-to-build-nexthttps://www.alejandroluis.com/blog/how-do-i-decide-what-to-build-nextMy realization that an application cannot grow without feedbackSun, 20 Sep 2026 17:20:03 GMThttps://www.alejandroluis.com/blog/how-to-build-a-project-on-the-side-while-working-full-timehttps://www.alejandroluis.com/blog/how-to-build-a-project-on-the-side-while-working-full-timeThe counterintuitive approach to do less, accomplish more, and become more satisfied with the process.Thu, 17 Sep 2026 17:29:00 GMThttps://www.alejandroluis.com/blog/why-i-trimmed-my-project-documentationhttps://www.alejandroluis.com/blog/why-i-trimmed-my-project-documentationDiscovering a study from Anthropic triggered a big change in my project, as well as a reflection about adaptability.Thu, 17 Sep 2026 13:34:56 GMThttps://www.alejandroluis.com/blog/excellence-is-the-capacity-to-take-painhttps://www.alejandroluis.com/blog/excellence-is-the-capacity-to-take-painWhy embracing pain is necessary for human flourishing and how one of the best athletes of history is the perfect example of this principle.Mon, 14 Sep 2026 18:08:00 GMThttps://www.alejandroluis.com/blog/no-but-really-what-are-you-curious-abouthttps://www.alejandroluis.com/blog/no-but-really-what-are-you-curious-aboutA simple question that happens to be very hard to answer may hold the key for a deeply satisfying life.Thu, 20 Aug 2026 17:53:00 GMThttps://www.alejandroluis.com/blog/8-lessons-i-learned-from-writing-an-unsuccessful-bookhttps://www.alejandroluis.com/blog/8-lessons-i-learned-from-writing-an-unsuccessful-bookFailed projects can be useful if you’re willing to learn from them, and writing a book taught me a few lessons that I will take with me for the rest of my life.Sun, 16 Aug 2026 19:01:00 GMThttps://www.alejandroluis.com/blog/11-lessons-from-gaining-weighthttps://www.alejandroluis.com/blog/11-lessons-from-gaining-weightWork-related lesson learned by going from “the skinny guy” to “the fitness guy” at 20 years old.Thu, 23 Jul 2026 18:44:00 GMThttps://www.alejandroluis.com/blog/favorite-principles-from-jeff-bezos-2https://www.alejandroluis.com/blog/favorite-principles-from-jeff-bezos-2My second favorite idea from the hyper-successful founder of Amazon.Fri, 05 Jun 2026 17:47:00 GMThttps://www.alejandroluis.com/blog/favorite-principles-from-jeff-bezos-1https://www.alejandroluis.com/blog/favorite-principles-from-jeff-bezos-1My favorite idea from the hyper-successful founder of Amazon.Tue, 02 Jun 2026 17:43:00 GMT