You can run the code right here, just click in the menu on Book code examples. You can edit and run all code examples by chapter, right here on the web site. You don’t need to install LaTeX.
The code is also available on GitHub for browsing and for download as a zip file.
And you can open the full book code set by a single click here: Everything in a single project. It creates an Overleaf project for you, with examples in chapter folders, you can edit them and click on Recompile to see the output. That would look like here:
I hope our Overleaf friends are not upset about this usage of resources. 😉