https://ufraan.dev/blog Notes on software, systems, and engineering by ufraan. en-us Fri, 05 Jun 2026 19:55:00 GMT https://ufraan.dev/blog/bittorrent-internals https://ufraan.dev/blog/bittorrent-internals A practical explanation of BitTorrent internals: torrent files, bencoding, trackers, peer discovery, pieces, seeders, and leechers. Fri, 01 May 2026 00:00:00 GMT https://ufraan.dev/blog/how-twitter-served-300k-timelines-ps https://ufraan.dev/blog/how-twitter-served-300k-timelines-ps A breakdown of Twitter's 300k timelines-per-second architecture: fan-out on write, timeline caches, read-heavy systems, and celebrity account tradeoffs. Fri, 20 Mar 2026 00:00:00 GMT https://ufraan.dev/blog/how-does-the-internet-work https://ufraan.dev/blog/how-does-the-internet-work A beginner-friendly explanation of how the internet works: networks, packets, routers, IP addresses, DNS, HTTP, HTTPS, and encryption. Tue, 10 Mar 2026 00:00:00 GMT https://ufraan.dev/blog/the-art-of-minimal-design-in-web-development https://ufraan.dev/blog/the-art-of-minimal-design-in-web-development A practical note on minimal UI design: intentionality, typography, visual hierarchy, focus, and the balance between clarity and usefulness. Thu, 15 Jan 2026 00:00:00 GMT https://ufraan.dev/blog/building-type-safe-apis-with-typescript https://ufraan.dev/blog/building-type-safe-apis-with-typescript A short guide to building type-safe APIs with TypeScript: shared types, runtime validation, generated types, and safer client-server contracts. Fri, 05 Dec 2025 00:00:00 GMT https://ufraan.dev/blog/inside-the-cloudflare-outage-nov-18-2025 https://ufraan.dev/blog/inside-the-cloudflare-outage-nov-18-2025 A clear breakdown of the Cloudflare outage on November 18, 2025: the feature-file failure, cascading 5xx errors, timeline, and systems lessons. Thu, 20 Nov 2025 00:00:00 GMT https://ufraan.dev/blog/understanding-react-server-components https://ufraan.dev/blog/understanding-react-server-components A practical introduction to React Server Components: server-only rendering, client boundaries, bundle size, data fetching, and migration tradeoffs. Sat, 10 Aug 2024 00:00:00 GMT