I love the flexibility of this. The only downside is that Opera GX decided to blacklist this but that's on them. Basically what this does to my understanding is it edits the webpages that you visit not by itself but by using third party scripts that you install. you can find these on greasyfork or other trusted sites. Beware if this has been installed maliciously or randomly as Opera GX claims. But the same could be said about any other extension so don't expect it to hold any water.