Get app ready to run Install nvm node version manager run nvm use on the terminal if nvm use fails run nvm install with the proper node version run npm install Run app Run script npm run start:db to start fake db you can change the inital values at src/data/mocks/db.js runs on 8080 port Run app npm run start the app proxies requests to the 8080 port, if json server is ran in another port, change the proxy config in the package.json Notes App aproximadly made in about 8 hours Fist time using react-query Spent about 2 hours to get the json-server running as i wanted. Rest of the 6 hours was used in the app I didnt take in count styles, most of it its default mui If you delete a note the favorite doesnt get deleted didnt understand how to cascade using json-server (would cascade with proper api) ToDO Only A single test was added as an example on how to mock external things to the test