Joy MallikNotes, ideas and progress as I build runtime software — schedulers, engines, and the systems underneath them.https://joym.devKaos devlog: Creating netns without CAP_NET_ADMINhttps://joym.dev/devlog#2026-08-20-creating-netns-without-cap-net-adminhttps://joym.dev/devlog#2026-08-20-creating-netns-without-cap-net-adminmanaged to get a netns running without sudo on a single thread. Thu, 20 Aug 2026 12:45:00 GMTPenny: Correcting my misconceptions after learning more about the execution modelhttps://joym.dev/blog/penny/2026-02-16-penny-model-correctionshttps://joym.dev/blog/penny/2026-02-16-penny-model-correctionsA design correction to Penny after better understanding JavaScript's execution model — tasks as explicit state machines.Mon, 16 Feb 2026 03:18:12 GMTWhen Draw calls stop being the pointhttps://joym.dev/blog/004/2026-01-30-when-draw-calls-stop-being-the-pointhttps://joym.dev/blog/004/2026-01-30-when-draw-calls-stop-being-the-pointDiscovering GPU-driven rendering, and realizing my mental model of draw-call optimization was a decade out of date.Thu, 29 Jan 2026 17:00:00 GMTPenny: Designing a memory model to support a work stealing scheduler in the browserhttps://joym.dev/blog/penny/2025-12-02-penny-mem-modelhttps://joym.dev/blog/penny/2025-12-02-penny-mem-modelDesigning a memory model that fits the browser's constraints for a Cilk-like work-stealing scheduler.Tue, 02 Dec 2025 03:18:12 GMT