--- title: "Harsh Agarwal (@itsharshag29) | Hashnode" description: "Building new things over nights & weekends. Read the latest articles by Harsh Agarwal on Hashnode." url: "https://hashnode.com/@itsharshag29" --- @itsharshag29 # Harsh Agarwal @itsharshag29 · Kolkata, India · Joined July 2024 Building new things over nights & weekends ### [A Beginner's Guide to LLMs: Insights from Andrej Karpathy's Tutorial](https://harshagarwal29.hashnode.dev/a-beginners-guide-to-llms-insights-from-andrej-karpathys-tutorial?utm_source=hashnode&utm_medium=feed) A complete beginner’s overview to get you started 12 min read · [harshagarwal29.hashnode.dev](https://harshagarwal29.hashnode.dev/a-beginners-guide-to-llms-insights-from-andrej-karpathys-tutorial?utm_source=hashnode&utm_medium=feed) [Aug 21, 2024](https://hashnode.com/posts/a-beginners-guide-to-llms-insights-from-andrej-karpathys-tutorial/66c61567e3db8684ac0bd1e9) ### [Building a DNS Resolver in Golang: A Step-by-Step Guide](https://harshagarwal29.hashnode.dev/building-a-dns-resolver-in-golang-a-step-by-step-guide?utm_source=hashnode&utm_medium=feed) My One-Week Journey to Build a DNS Resolver 14 min read · [harshagarwal29.hashnode.dev](https://harshagarwal29.hashnode.dev/building-a-dns-resolver-in-golang-a-step-by-step-guide?utm_source=hashnode&utm_medium=feed) [1](https://hashnode.com/posts/building-a-dns-resolver-in-golang-a-step-by-step-guide/66aa2551b716487425a501df) [Jul 31, 2024](https://hashnode.com/posts/building-a-dns-resolver-in-golang-a-step-by-step-guide/66aa2551b716487425a501df) ### [Unveiling the Magic of DNS: How the Internet's Directory Works](https://harshagarwal29.hashnode.dev/unveiling-the-magic-of-dns-how-the-internets-directory-works?utm_source=hashnode&utm_medium=feed) Learn Why DNS Matters and How It Affects You 6 min read · [harshagarwal29.hashnode.dev](https://harshagarwal29.hashnode.dev/unveiling-the-magic-of-dns-how-the-internets-directory-works?utm_source=hashnode&utm_medium=feed) [Jul 7, 2024](https://hashnode.com/posts/unveiling-the-magic-of-dns-how-the-internets-directory-works/668ab7d564a7a3ba67f8f7c5)