you can see the work By link:

  config/             contains application configurations
  widgets/            widgets application
  controllers/        contains Web controller classes
  components/         contains Web component
  components/behaviors    behaviors for model
  migration/          contains Web controller classes
  models/             contains model classes
  tests/              contains various tests for the basic application
  views/              contains view files for the Web application

Run migration for Database deployment

Yii > v2
PostgreSQL > 9.0
Php > 5.5
Composer