Really love the mod, but I find that trying to give my friends some of the items I’ve crafted for them doesn’t work as they lack the progression required to use those items (like the rings and circlets). As they don’t have as much interest in pursuing the mod as I do, it becomes a problem when I try to give them the cool things the mod has.
A “Tome of Knowledge Sharing”, à la Thaumic Tinkerer, could be a potential solution to this problem. Maybe it could be a cool ritual where weird particles come out of the “teacher” to the “student”, or it could be a simple book that you use.

There is an addon called Spectral Sync that adds exactly this, for now. I think something for progression sharing is planned.

Definitely good to have down the line.
Not entirely sure now it will turn out flavor-wise, but it is planned.