Plugin development Kanboard

I’m a student who tries to develop a plugin on Kanboard, and i was wondering what technologies are used :

  • Symfony ?
  • Doctrine ?
  • others ?

Could you give me some ints to help start my plugin development (other than what’s written on Kanboard’s Official Documentation) ?
I have already created the base of my plugin with CookieCutter.

Thanks very much for your help