Education project of framework yii2 where I learned:
- Creating a structure of DataBase
- How tables should have relationships
- Writing CRUD to DB
- How works MVC in Yii 2 (i know before it on OpenCart MVC)
- How use composer
- How to apply AJAX (i know before it on OpenCart MVC)
- Module structure
- How to write widgets
- How to make authorization and authentication

if I forgot something will add.
Admin page https ://bit.ly/3d4tp6r
login admin
pass 1234