Le Qin — software engineer working on observability at AWS. Notes on distributed systems, telemetry, and the occasional side project.https://www.qinle.ltd/en-ushttps://www.qinle.ltd/blog/colophon/https://www.qinle.ltd/blog/colophon/Astro compiled to static HTML, built by CI, deployed to a static host. No server, no database, no framework shipped to the browser.Thu, 20 Aug 2026 00:00:00 GMTinframetahttps://www.qinle.ltd/blog/ar-navigator-dev-log/https://www.qinle.ltd/blog/ar-navigator-dev-log/Notes on an augmented reality wayfinding prototype that overlaid turn-by-turn directions on the live camera view.Thu, 10 Nov 2022 00:00:00 GMTxrportfoliohttps://www.qinle.ltd/blog/ar-tree-planting-game/https://www.qinle.ltd/blog/ar-tree-planting-game/Built a two-person augmented reality game where you plant and tend trees anchored to real surfaces around you, for a Michigan XR course.Fri, 28 Oct 2022 00:00:00 GMTxrportfoliohttps://www.qinle.ltd/blog/vr-lab-classroom/https://www.qinle.ltd/blog/vr-lab-classroom/A teammate and I recreated one of our university lab classrooms in VR for a Michigan extended-reality course, then added interactive elements on top.Mon, 03 Oct 2022 00:00:00 GMTxrportfolio