--- title: "Harsh Panghal (@harshpanghal) | Hashnode" description: "Harsh Panghal (@harshpanghal) writes on Hashnode. Read their latest articles and follow their work." url: "https://hashnode.com/@harshpanghal" --- @harshpanghal # Harsh Panghal @harshpanghal · Joined May 2025 [Website](https://harshpanghal.vercel.app/) ### [Is DSA Really Necessary? A Clear Answer for Developers](https://cxc.hashnode.dev/should-i-do-dsa?utm_source=hashnode&utm_medium=feed) Is DSA necessary? Should I learn DSA or skip it and focus on development? Yes, DSA is important. But not for the reason most people think. 4 min read · [cxc.hashnode.dev](https://cxc.hashnode.dev/should-i-do-dsa?utm_source=hashnode&utm_medium=feed) [Jan 24](https://hashnode.com/posts/should-i-do-dsa/69747bc8cf16d9772bc4d639) ### [Chainlink Data Feeds: The Complete Developer's Guide to Real-World Data in Smart Contracts](https://cxc.hashnode.dev/chainlink-data-feeds-the-complete-developers-guide-to-real-world-data-in-smart-contracts?utm_source=hashnode&utm_medium=feed) A comprehensive guide to use understand and use Chainlink's data feed contracts into your application. 9 min read · [cxc.hashnode.dev](https://cxc.hashnode.dev/chainlink-data-feeds-the-complete-developers-guide-to-real-world-data-in-smart-contracts?utm_source=hashnode&utm_medium=feed) [Jun 30, 2025](https://hashnode.com/posts/chainlink-data-feeds-the-complete-developers-guide-to-real-world-data-in-smart-contracts/686daa6ffdfbfd2d8c697808) ### [Building a Real-World Blockchain Voting System in Solidity](https://cxc.hashnode.dev/blockchain-voting-system-solidity?utm_source=hashnode&utm_medium=feed) Learn how to build a secure, time-controlled voting system using Solidity. 4 min read · [cxc.hashnode.dev](https://cxc.hashnode.dev/blockchain-voting-system-solidity?utm_source=hashnode&utm_medium=feed) [Jun 26, 2025](https://hashnode.com/posts/blockchain-voting-system-solidity/685cd3f136b5ff8c37a6d94f) ### [How Harvard's CS50 Course on Algorithms Changed the Way I Think About Code (and Why Every Engineer Should Take It)](https://cxc.hashnode.dev/harvard-cs50-algorithms-review?utm_source=hashnode&utm_medium=feed) Read my in‑depth technical review of Harvard’s CS50 Algorithms course—see real-world code examples, key insights, and why every engineer should take it 4 min read · [cxc.hashnode.dev](https://cxc.hashnode.dev/harvard-cs50-algorithms-review?utm_source=hashnode&utm_medium=feed) [Jun 17, 2025](https://hashnode.com/posts/harvard-cs50-algorithms-review/685195e37caa3894a634a139) ### [Unraveling the Web: From Your Code to a Live Server](https://cxc.hashnode.dev/docker-ssh-ci-cd-linux-server-deployment-guide?utm_source=hashnode&utm_medium=feed) Learn how Docker, SSH, Linux servers, and CI/CD pipelines work together to deploy your backend applications. This beginner-friendly guide breaks down each c 11 min read · [cxc.hashnode.dev](https://cxc.hashnode.dev/docker-ssh-ci-cd-linux-server-deployment-guide?utm_source=hashnode&utm_medium=feed) [Jun 10, 2025](https://hashnode.com/posts/docker-ssh-ci-cd-linux-server-deployment-guide/6847be0683f38fa21afead75)