[jedberg]

I don't see a way to install an extension that isn't in the Safari store, other than that link I found on reddit. But I could definitely be missing something.

[gabrielsroka]

I meant they support the standard. If you have the source code. I didn't mean that Safari can install them directly from Chrome's store.

[bluish29]

You will need to build it using xcode and install it like ordinary app (On MacOS at least)