This project is built using Rust, so you'll need to install Rust in order to build the book.
rustup is the recommended way to install Rust.
You also can download Rust here.
$ git clone git@github.com:intermezzOS/book.git intermezzOS/book
$ cd intermezzOS/book
$ cargo install mdbook
Then, inside the first-edition or second-edition directories, run this:
$ mdbook build
The mdbook crate builds from markdown files in /src,
creating html files in a /book directory.
Open index.html in your browser to view the built book.