macOS 11.4 has finally fixed all the problems with installing current and older macOS on external disks, and booting an M1 Mac from them.
Apple silicon
What are a new kernel extension and a private framework doing in macOS 11.4? Here are some details, and suggestions for further research.
Cloning has been a popular way of creating external bootable disks. Now that CCC 6 can make full clones of disks for M1 Macs, is it a solution?
We commonly suffer failures of the psychology of Mac performance, when system background tasks overwhelm the processor and bring the interface to a grinding halt
One command in Terminal which instantly disables any support, and why you can’t (yet) boot your M1 Mac in Linux.
It has been years coming, but I’ve finally got a Thunderbolt hub/dock which lets me connect more TB3 disks. Was it worth the wait and cost?
My M1 Mac mini was stuck trying to start up. Its power light was on, but there was no video output, and to all intents it was dead.
What you can learn about the processes running on your Mac, its processor cores, even the files which an app has open.
By segregating macOS background tasks on Efficiency cores, M1 Macs can run user apps unfettered on their Performance cores. And that feels really fast.
In Big Sur, Apple is trying to change our update habits, getting us all to update early, and run only the latest release of macOS. Its campaign uses installer behaviour, mass psychology, and boot security.
The Eclectic Light Company 