I wish there was some "library request" mechanism for shadow libraries. I don't mind sharing torrents, especially for older and rare works (which are unlikely t

I wish there was some "library request" mechanism for shadow libraries. I don't mind sharing torrents, especially for older and rare works (which are unlikely to be targeted for copyright), but I can't keep all of them active at the same time, lot of them I have on backup disks. I imagine the client could request for data to become available, then server (person managing a part of shadow library) could make somehow available the files after a certain period, and the client would automatically download the available files.