npm i - init libs
npm run watch - play with FE js
npm run build - build Joomla zip installer(required PHP >= 7.2)
Alternatively can be used docker-compose with npm and php included, see available commands in Makefile:
make init - init libs
make build - build Joomla zip installer
make watch - play with FE js
Before build docker container please make sure you set correct USER_ID and GROUP_ID in .env file