1. dev build
2. creates local server
3. HMR hot module reload
4. it uses file watching algorithm --written in C++
5. it chaches that is why it is faster
6. it does image optimization
7. it does compresses files
8. it bundles your files
9. it minifies your files in app
10. it does splitting
11. it does differential bundling i.e; supports older browsers
12. it does diagnostics
13. it handles errors
[live demo] (https://food-ordering-be46j6zts-hyders-projects.vercel.app/)