In this guide, we'll use React.js to run a complete virtual machine right here in your browser!Using the V86 project, we can turn your browser into a proper computer emulator by using WebAssembly.We'll boot up both FreeDOS and Alpine Linux right in your browser in this tutorial.For this, we'll need a basic knowledge of HTML, Javascript, and CSS along with a web browser with WebAssembly support.To start, create a React App using Vite, which is super fast and modern.Next, grab the necessary files from V86's GitHub releases and BIOS files from the V86 repository, and put them in the project accordingly.After that, configure your virtual machine in App.jsx, and choose either FreeDOS or Alpine Linux to boot up.If you want an authentic retro computer feel, download the 'Modern DOS' font and update the index.css file.Finally, enjoy running classic DOS games and playing with Linux commands right in your browser!Other similar cool projects to check out - JSLinux, PC.js, and Mini.WebVM.