After cloning the repo, run npm install to install dependencies.
If your commit fails, it is probably due to code style problems. Run npm run check to check for code style problems and run npm run fix to fix problems that can be fixed automatically (e.g. indentation).
Start development server by running npm run start.
Create a production build by running npm run build.
After creating a production build, deploy to GitHub Pages by running npm run deploy. However, it is necessary to do manual deployment like this because automatic deployment has been set up with GitHub Actions.