Thanks for your help
Do not have a clue on how to install "open core legacy patcher to upgrade to macOS 12 Monterey"
My Fusion Drive is still ok (had to format the drive one time for cluster issue, but now it is all right)
Am not expecting to change my Mac right now since it works pretty fine for what I do (much better than a PC after 12 years !)
I may have another proposal :
Please confirm me if I'm wrong, but I learned someday that it was possible to share Calibre library on a personal network.
If possible, then I could use the Macbook from my son, or my PC, to access to calibre library and send books to the elipsa no ?
I'll check this opportunity but if you know how to proceed, you are welcome
