Hello. What are the flarum forum "skins" written in? What are the applications written in? I really like flarum, I'm starting to learn to be a front-end developer, but I also intend to create skins and plugins for flarum. Both paid and free ones. Greetings to all 
Flarum Forum. Themes, plugins - my question.
szczypiorek239 extensions and themes that affect the design and layout will require Javascript, typescript and/or mithriljs knowledge. You can read about it in https://docs.flarum.org/extend
luceos
HTML, CSS, JavaScript + TypeScript and/or Mithriljs? And where is PHP in this? 
szczypiorek239 you can read this to get started, it explains the magic behind Flarum in more detail: https://docs.flarum.org/extend/start#architecture
szczypiorek239 the biggest thing with Flarum design relates to these technologies, not so much PHP. Flarum is a Single Page Application.
If you do want settings and things provided from the backend, you will need basic PHP experience.
Understand that we're here to help in case you have any questions, there's a dev tag and an extend channel on our discord.
szczypiorek239 Yes: https://discuss.flarum.org/d/32522-flarum-v170-released/45
I have updated all FreeFlarum forums to 8.2 today and had no issues so far either...
SKevo
Thanks 