https://xfaang.com/blog Software development, AI agents and engineering essays from the Xfaang team. en-us Wed, 01 Jul 2026 10:06:18 GMT https://xfaang.com/blog/geo-real-quality https://xfaang.com/blog/geo-real-quality Thu, 28 May 2026 00:00:00 GMT Piotr Zientara For two decades search rewarded the people who gamed it best. The new LLM-driven engines reward the people who actually know what they are talking about. A short essay on GEO — Generative Engine Optimization. https://xfaang.com/blog/codesota-xfaang https://xfaang.com/blog/codesota-xfaang Mon, 25 May 2026 00:00:00 GMT Kacper Wikiel CodeSOTA is the open, dated benchmark registry Xfaang pays for, and is not allowed to touch. 9,102 sourced AI benchmark results across 163 models, 371 datasets and nine capability areas. https://xfaang.com/blog/meet-sara-your-digital-companion-with-personality/3bN6kXqCEDgqBtnQVI6AGi https://xfaang.com/blog/meet-sara-your-digital-companion-with-personality/3bN6kXqCEDgqBtnQVI6AGi Fri, 13 Feb 2026 23:00:00 GMT Xavier Faang Introducing Sara by Xfaang - a multi-channel digital companion that works across WhatsApp, Slack, Discord, and phone calls. Not a chatbot. A colleague with a unique personality that does real work. https://xfaang.com/blog/digital-maria-sk-odowska-curie-educates-in-the-time-to-understand-the-atom-campaign/2JpGl5PaAqqwdgi8KX3FE5 https://xfaang.com/blog/digital-maria-sk-odowska-curie-educates-in-the-time-to-understand-the-atom-campaign/2JpGl5PaAqqwdgi8KX3FE5 Fri, 19 Dec 2025 23:00:00 GMT Agnieszka Sielańczyk Maria Skłodowska-Curie is returning to teach Poles about nuclear energy. The Ministry of Energy revived the Nobel Prize winner using artificial intelligence. It involved several weeks of work by dozens of specialists on a project aimed at education. https://xfaang.com/blog/the-conversation-is-broken-a-new-architecture-for-the-modern-phone-call/7pkKGurxfmWxa3x7nQrKsb https://xfaang.com/blog/the-conversation-is-broken-a-new-architecture-for-the-modern-phone-call/7pkKGurxfmWxa3x7nQrKsb Sun, 10 Aug 2025 22:00:00 GMT Martyna Kazimierczuk Phone calls are broken. From STIR/SHAKEN to spam blockers, we’ve fought to restore trust. Now, a new layer of conversational AI can answer, understand, and summarize calls in real time — making calls smart again. https://xfaang.com/blog/cleanrushfun-from-bash-one-off-to-macos-game/6AO1pkiyNWMPageqkhHIA2 https://xfaang.com/blog/cleanrushfun-from-bash-one-off-to-macos-game/6AO1pkiyNWMPageqkhHIA2 Tue, 05 Aug 2025 22:00:00 GMT Piotr Zientara Turn desktop chaos into a game. How CleanRushFun evolved from a 120-line Bash script to a privacy-first macOS app https://xfaang.com/blog/do-ai-tools-equalize-programmer-skills-or-amplify-existing-differences/536WdujboMZO2qvEo53cg8 https://xfaang.com/blog/do-ai-tools-equalize-programmer-skills-or-amplify-existing-differences/536WdujboMZO2qvEo53cg8 Sun, 11 May 2025 22:00:00 GMT Piotr Zientara Are AI tools like GitHub Copilot narrowing the skill gap between junior and senior devs—or making it wider? This post explores how strong AI impacts coding productivity, learning curves, and what it means for tech teams https://xfaang.com/blog/natural-language-is-now-the-only-no-code-tool-that-matters/slvrJ005SjSnDqnIIfeVX https://xfaang.com/blog/natural-language-is-now-the-only-no-code-tool-that-matters/slvrJ005SjSnDqnIIfeVX Sat, 12 Apr 2025 21:59:00 GMT Piotr Zientara The no-code movement aimed to make software accessible. But AI changed the rules. Language is now the only interface that matters. This post explores why AI-native tools have quietly replaced no-code — and what it means for how we build software. https://xfaang.com/blog/building-a-real-time-chess-app-with-ai-powered-commentary/6U70rTsc0fEdOW8PYdocm3 https://xfaang.com/blog/building-a-real-time-chess-app-with-ai-powered-commentary/6U70rTsc0fEdOW8PYdocm3 Tue, 24 Sep 2024 22:00:00 GMT Piotr Zientara Experience real-time AI-generated insights on your chess moves, all within a user-friendly HTML, CSS, and JavaScript app https://xfaang.com/blog/et-in-arcadia-ego-ai-in-modeling-ft-lalaland-ai/50SCPKcMoWpbjvxINQhIvM https://xfaang.com/blog/et-in-arcadia-ego-ai-in-modeling-ft-lalaland-ai/50SCPKcMoWpbjvxINQhIvM Sun, 21 Jul 2024 22:00:00 GMT Iga Trydulska In 2023, Levi's partnered with Lalaland.ai, an AI-generated model start-up, sparking public scrutiny. We spoke with the start-up representative and tech experts to explore the implications of digital models. https://xfaang.com/blog/how-faang-companies-hire-top-talent/1rV7oosOXK1feyRwr3x2ZM https://xfaang.com/blog/how-faang-companies-hire-top-talent/1rV7oosOXK1feyRwr3x2ZM Fri, 05 May 2023 22:00:00 GMT Daniel Stradowski Tech giants have a complex recruitment process designed to select the best of the best. https://xfaang.com/blog/azure-iot-deployment-templates-are-horrible-and-i-fixed-it/5DUsFjp0KUcUM0JhiTIobV https://xfaang.com/blog/azure-iot-deployment-templates-are-horrible-and-i-fixed-it/5DUsFjp0KUcUM0JhiTIobV Wed, 01 Sep 2021 22:00:00 GMT Damian Łączak Xfaang senior backend developer Damian created IoT Deployment Generator to address pesky Azure IoT deployment templates' issues https://xfaang.com/blog/my-first-roslyn-analyzer/7LBXNa4rKVur9Ycz7mgxqN https://xfaang.com/blog/my-first-roslyn-analyzer/7LBXNa4rKVur9Ycz7mgxqN Sun, 11 Apr 2021 22:00:00 GMT Damian Łączak @Xfaang we write about matters we find important for IT as well as present quality coding solutions. https://xfaang.com/blog/easiest-way-to-create-graphql-api-for-a-typescript-module/57uocxLbjvTXBPlQCxLPyf https://xfaang.com/blog/easiest-way-to-create-graphql-api-for-a-typescript-module/57uocxLbjvTXBPlQCxLPyf Sat, 09 Jan 2021 22:00:00 GMT Marcin Hagmajer @Xfaang we write about matters we find important for IT as well as present quality coding solutions.