Please keep in mind that some files in the root folder are hidden (starting with a dot symbol, e.g. .eslintr.js or .env files). To avoid compilation problems, please check this if you want to move the files to another folder.
Install latest node.js: https://nodejs.org
Install latest yarn package manager: https://yarnpkg.com/
Install angular cli: npm install -g @angular/cli
Install node modules by running terminal command yarn install
Run the app yarn start
or ng serve --open
Or build production app yarn build
or ng build