--- title: "Laniyan Abdul-Qawi Oladotun (@DevDotun) | Hashnode" description: "Web Development. Read the latest articles by Laniyan Abdul-Qawi Oladotun on Hashnode." url: "https://hashnode.com/@DevDotun" --- @DevDotun # Laniyan Abdul-Qawi Oladotun @DevDotun · Abuja, Nigeria · Joined March 2023 Web Development ### [How QR Codes Actually Work](https://devdotun.hashnode.dev/how-qr-codes-actually-work?utm_source=hashnode&utm_medium=feed) QR codes are more than patterns. Here is how they encode data, detect orientation, and recover missing information. 4 min read · [devdotun.hashnode.dev](https://devdotun.hashnode.dev/how-qr-codes-actually-work?utm_source=hashnode&utm_medium=feed) [Mar 12](https://hashnode.com/posts/how-qr-codes-actually-work/69b2a74f31303b597ce97650) ### [How I Built an Internship Directory Using React Router and Google Sheets as a Database](https://devdotun.hashnode.dev/how-i-built-an-internship-directory-using-react-router-and-google-sheets-as-a-database?utm_source=hashnode&utm_medium=feed) Turning a simple spreadsheet into a searchable internship platform with React 4 min read · [devdotun.hashnode.dev](https://devdotun.hashnode.dev/how-i-built-an-internship-directory-using-react-router-and-google-sheets-as-a-database?utm_source=hashnode&utm_medium=feed) [Dec 16, 2025](https://hashnode.com/posts/how-i-built-an-internship-directory-using-react-router-and-google-sheets-as-a-database/69418d1cc0ddaf63c8edb88b) ### [🎧 I Tried Cloning Shazam with React and Node.js — Here's What I Learned](https://devdotun.hashnode.dev/i-tried-cloning-shazam-with-react-and-nodejs-heres-what-i-learned?utm_source=hashnode&utm_medium=feed) Discover how I built a simplified Shazam clone using React, Node.js, and the Shazam API. Learn about audio processing in the browser, backend challenges. 3 min read · [devdotun.hashnode.dev](https://devdotun.hashnode.dev/i-tried-cloning-shazam-with-react-and-nodejs-heres-what-i-learned?utm_source=hashnode&utm_medium=feed) [Jun 1, 2025](https://hashnode.com/posts/i-tried-cloning-shazam-with-react-and-nodejs-heres-what-i-learned/683f73a0e8fbfbebe96ce397) ### [AI in 2025: What Devs (and Techies) Need to Know](https://devdotun.hashnode.dev/ai-in-2025-what-devs-and-techies-need-to-know?utm_source=hashnode&utm_medium=feed) Stay ahead of the curve in 2025. Explore the latest AI trends, LLMs, agents, and tools every developer and tech professional needs to know. 4 min read · [devdotun.hashnode.dev](https://devdotun.hashnode.dev/ai-in-2025-what-devs-and-techies-need-to-know?utm_source=hashnode&utm_medium=feed) [Apr 22, 2025](https://hashnode.com/posts/ai-in-2025-what-devs-and-techies-need-to-know/6807b6cf5aedc4bb8264d093) ### [Understanding DevRel: The Heart of Developer Connections 🥑](https://devdotun.hashnode.dev/understanding-devrel-the-heart-of-developer-connections?utm_source=hashnode&utm_medium=feed) Discover the fundamentals of Developer Relations (DevRel) and how it bridges the gap between developers and companies. 7 min read · [devdotun.hashnode.dev](https://devdotun.hashnode.dev/understanding-devrel-the-heart-of-developer-connections?utm_source=hashnode&utm_medium=feed) [Mar 14, 2025](https://hashnode.com/posts/understanding-devrel-the-heart-of-developer-connections/67d435b50cd849ed22e487eb)