There's a link on the index page of the forum. But here it is, for convenience:
https://inkscape.org/en/release/Maybe we should make Lazur's one-click solution into a template, and install into Inkscape - I mean so that it's part of the program? Could even make one of them a parent, and all the others clones. Maybe something like Jabier's Seamless Pattern template? So that the user just needs to edit the parent card, and all the others are created automatically. I guess it might need instructions -- telling which one is the parent to be edited, and to break all clone links, before sending to printer?
Maybe not installed with Inkscape, but uploaded to the gallery with good tags? Not sure if I could manage it, but might try, if no one else does.