Web site of PHP, yii2

Webinar platform for online broadcasts

Web portal written with PHP, yii2
Desktop application C#, WPF
Decoding the video stream using the library in C++
Online chat on sockets, PDF doc, integration with app
Integration with FB, Instagram, Youtube Channel, Integration with Google Service API, Calendar, Presentation, Registration and Other...

Based on this engine, you can create an online training agency, an agency for recruitment through video interview recording, chat, access resume, etc.