Thinking through a “share with Mastodon” button that anyone could embed on a website. It’s a harder problem than a “share with Twitter” button, because
This is a good idea. It'd be neat to get fediverse services, including lemmy, supporting this. We could make cross site interactions so much easier.
I'm probably missing something, but wouldn't it be far easier to redirect people to install page of extension for their respective browser? Such extension could then transform the button as needed to point to whichever social web instance.