Essays on systems, AI agents, and the unglamorous engineering that ships software at scale — by Varun Sharma.https://varunsharma.com/en-ushttps://varunsharma.com/writing/why-static-beats-dynamic/https://varunsharma.com/writing/why-static-beats-dynamic/Most sites reach for a server, a database, and a runtime they never needed. Here is the case for shipping HTML you can cache forever — and the narrow set of cases where dynamic actually earns its keep.Mon, 08 Jun 2026 00:00:00 GMTSystemshttps://varunsharma.com/writing/building-an-agent-fleet/https://varunsharma.com/writing/building-an-agent-fleet/I spent the last quarter turning a single overworked assistant into a fleet of forty-odd narrow agents. Here is what actually changed — and the handful of decisions I'd make again on day one.Fri, 22 May 2026 00:00:00 GMTAIhttps://varunsharma.com/writing/economics-of-llm-inference/https://varunsharma.com/writing/economics-of-llm-inference/Training gets the headlines, but inference is where the money quietly goes. A look at what actually drives the bill — context length, cache hit rate, batching — and the levers that move it.Tue, 14 Apr 2026 00:00:00 GMTAIhttps://varunsharma.com/writing/shipping-50-prs-in-a-week/https://varunsharma.com/writing/shipping-50-prs-in-a-week/A week of deliberately high throughput taught me where velocity actually comes from — and that the bottleneck is almost never typing speed. Notes on small diffs, fast review, and the discipline that makes speed safe.Mon, 30 Mar 2026 00:00:00 GMTEngineeringhttps://varunsharma.com/writing/distributed-systems-failure/https://varunsharma.com/writing/distributed-systems-failure/Distributed systems don't fail the way single machines do. They fail partially, ambiguously, and at the worst possible moment. A practical taxonomy of the failures that will find you, and the postures that survive them.Wed, 11 Feb 2026 00:00:00 GMTSystems