The above shows you how to integrate a Browser Source, which is easiest way to add your custom plugin into OBS. You can set the URL to a local html file which contains your code for the plugin. The code in the HTML file may be simple or complex. Twitch TV OBS Subtitles is a great...
Note:Right before I published this article, the beta of Streamlabs OBS for Mac was released. Everything I say about OBS in this article will still apply; if I try Streamlabs OBS and like it, I'll update this post to mention it. From what I've heard, the beta is currently a bit to...