I’m learning Angular, trying to complete the “Your first Angular app” tutorial on angular.dev: https://angular.dev/tutorials/first-app/01-hello-world.

The tutorial gives you a .zip download with the source code so you can follow along in your local environment. However, the .zip file contains only a single folder, the src folder. There is no package.json, and no other configuration files. The tutorial instructs you to run npm install but doing so yields npm ERR! code ENOENT due to there being no package.json file. Am I missing something? What steps can I take to run the source code for this tutorial in my local environment?