I got the 64gb from the wait-list which ended the day before it arrived in the mail. I put in an aftermarket 1tb nvme 2230 and the tiny emmc thing is in my router now. At the time that I did it, I believe the ifixit guide suggested peeling off the foil shield thing but I just slid it off and on to the new one without unwrapping it. It was pretty easy but if you haven’t taken many things apart, just get one of the bigger models. There are a number of annoyances with just 64gb and that model totally existed just for people like me apart from having a drive at all, which is probably so people don’t cluelessly buy one with no drive and complain.