Deno is a JavaScript runtime built with Rust and V8 that allows JavaScript execution outside the browser, offering enhanced security over Node.js by restricting network and file system access by default. This tutorial explores the creation of Deno plugins using Rust, illustrating the advantages of writing these plugins, such as improved performance for tasks like image processing and access to a wide range of Rust libraries. The tutorial provides a step-by-step guide on setting up a Deno plugin project structure, building a Rust project, and creating both synchronous and asynchronous plugins using Rust's oxipng crate and futures for non-blocking execution. It highlights how to compile, load, and execute the plugins within Deno, addressing compatibility with different operating systems and detailing the use of Deno's unstable APIs. The tutorial emphasizes the value of integrating Rust's extensive ecosystem into the Deno environment to enhance functionality and performance.