1. Node JS as server => https://nodejs.org/en/
2. MongoDB as databases => https://www.mongodb.com/
3. React Native as client => https://facebook.github.io/react-native/
- Run "npm install" on REST Server folder (including : Body Parser, Mongoose and Express JS)
- Replace all files except the REST Server folder to your fresh init React Native project then run "npm install" including react-navigation and hrm.