This is the personal website of Gaarth, a french software developer deep into OSINT. The website includes GLSL shaders, blog posts on software development, OSINT, dev life and everything in betweenhttps://gaarth.netlify.app/enhttps://gaarth.netlify.app/blog/19092026-logic-pixels-sms-encoding-and-metamorphic-malware/https://gaarth.netlify.app/blog/19092026-logic-pixels-sms-encoding-and-metamorphic-malware/Notes on how CSS pixels map to displays, why a single character can shrink an SMS, and how metamorphic malware changes shape.Sat, 19 Sep 2026 00:00:00 GMTGaarthdevelopmentwebsecurityhttps://gaarth.netlify.app/blog/30082026-residuality-theory-software-architecture/https://gaarth.netlify.app/blog/30082026-residuality-theory-software-architecture/An introduction to residuality theory: stressing a naive architecture to discover the resilient systems that remain.Sun, 30 Aug 2026 00:00:00 GMTGaarthsoftware architectureresiliencehttps://gaarth.netlify.app/blog/26062026-using-agent-everyday-at-work-for-two-months/https://gaarth.netlify.app/blog/26062026-using-agent-everyday-at-work-for-two-months/Two months of daily coding-agent use: faster delivery, shifted cognition, new strengths, and an uneasy sense of dependence.Fri, 26 Jun 2026 00:00:00 GMTGaarthaidevelopmentworkhttps://gaarth.netlify.app/blog/13092025-maybe-i-should-become-a-cobol-dev/https://gaarth.netlify.app/blog/13092025-maybe-i-should-become-a-cobol-dev/Why the apparent calm of COBOL can feel like an escape from the relentless churn of modern web development.Sat, 13 Sep 2025 00:00:00 GMTGaarthdevelopmentcareerhttps://gaarth.netlify.app/blog/29032025-the-simple-yet-powerful-technique-of-memoization/https://gaarth.netlify.app/blog/29032025-the-simple-yet-powerful-technique-of-memoization/How memoization avoids repeated network work and turns expensive integration calls into fast cached lookups.Sat, 29 Mar 2025 00:00:00 GMTGaarthdevelopmentperformancehttps://gaarth.netlify.app/blog/24012025-a-morning-in-mauritania-osint-challenge/https://gaarth.netlify.app/blog/24012025-a-morning-in-mauritania-osint-challenge/Locating a street scene in Mauritania with reverse image search, satellite imagery, and the intelligence life cycle.Fri, 24 Jan 2025 00:00:00 GMTGaarthosintchallengehttps://gaarth.netlify.app/blog/23122024-the-tracks-of-aiko-the-hacker-osint-ctf/https://gaarth.netlify.app/blog/23122024-the-tracks-of-aiko-the-hacker-osint-ctf/Following a hacker's digital trail through metadata, public keys, social profiles, cryptocurrency, and geolocation clues.Mon, 23 Dec 2024 00:00:00 GMTGaarthosintctfhttps://gaarth.netlify.app/blog/19092024-world-tour-behind-my-desk-osint-ctf/https://gaarth.netlify.app/blog/19092024-world-tour-behind-my-desk-osint-ctf/A step-by-step journey through the SEINT 2023 OSINT CTF, following clues across countries and online sources.Thu, 19 Sep 2024 00:00:00 GMTGaarthosintctf