I will fix the generated code so that the copy and paste works as well. I was mostly focussing on the button and… clearly didn’t test the codes enough.
The “type unknown” refers to the type of instance (lemmy vs. kbin), and you can use the “Toggle home instance type” to change it. It exists because lemmy uses “/c/” for community links, while kbin uses “/m/”, and the extension needs to know what kind of link to generate. By default, it generates Lemmy style links.
I am planning to add a little (?) help icon to each button, which might help with confusing bits like this in the future.