How do I add vgy.me to the app?

[Flyffstorm]

I couldn't figure out how to get the necessary stuff for using a custom site, in this case vgy.me - if possible, could it be added automatically too? It's a good alternative to Imgur.

[mariogarridopt]

I just make an app inspired by Katana that uses vgy as the main host provider: https://github.com/mariogarridopt/Saphira/releases/tag/v1.0.0