What are plugins for OBS developed on?

Question

Programming

Which technologies to look for when developing plugins for OBS and how to connect them to the site (for example, donationalerts )?

Answer 1

Donationalerts is a standalone application that submits its widget via the Browser input plugin. Actually, this input plugin is the most popular for interactive widgets, so you can’t do without Javascript, and any backend can be.
Plugins directly for OBS are written in C / C ++ and Objective-C under macOS, there are only 4 types:

• Input - render media content to add to the scene
  
• Output - output somewhere, in fact they are responsible for recording locally and streaming
  
• Encoder - used by outputs to encode audio / video
  
• Service - broadcast settings for different streaming sites