Okay then it maybe has something to do with downloading DreamPi.
It seems like if Dreampi touches my hard drive, it gets altered in such a way that the Macintosh renders it useless on other platforms.
In the early 2000s, Apple had commercials about how it played nice with PCs. It even was an alternate way to operate a Mac as a PC.
Apparently that commitment doesn't extend to Pi or Android, or other newer formats.
I want to test this theory, by trying to download and flash on an Android.
In the old days, cellular internet was my fastest connection, and I can transfer and flash by using USB C 3.1 on my phone.
Any way to try that? I suspect it's the way Apple writes files that it ruins it for other formats.
Any info on Android Pi-flashing?