Thanks for pointing that out!

We’ve just updated the lesson to make it explicit that you need to clone (or download) the entire repo, and change directory into its top‑level folder (where package.json lives).

Thank you for the feedback!

We’ve updated Lesson 0 to specify the required Node.js/npm versions and made it clear that all commands must be run from the project folder containing package.json.

When you run commands from the repo’s root directory (the folder containing package.json), Vite is installed automatically as a dev dependency - so you don’t need to install it manually.

If you still see a 404 at http://localhost:5173/, it usually means the dev‑server was started from the wrong directory (one without index.html and package.json). Please make sure you’re in the repo folder and let us know if you hit any other snags!

Hi everyone!

I'm Piotr, a principal developer with over 10 years of experience. Throughout my career, I've implemented numerous projects, focusing primarily on data visualization and creating robust project architectures. As the tech lead in this community, I'm here to share my knowledge and help with any questions you might have. Feel free to reach out - I’m always happy to assist!