Deno is a modern JavaScript and TypeScript runtime built on V8 JavaScript engine, designed to provide a more secure and efficient alternative to Node.js. As a relatively new player in the JavaScript ecosystem, Deno has garnered significant attention from developers and tech enthusiasts due to its promise of improved security features, simplified dependency management, and compatibility with modern web standards, making it a topic of interest for those exploring new technologies and architectures for building scalable and secure applications.