And then I want to do something even more voodoo. I want to take this TimeMachine backup (from a virtual macos) and install on a real macbook. Feels like it is going to explode, but maybe not.

My goal is to set up my new MacOS environment (apps, configuration, etc) through VirtualBox inside my old MacBook and take a backup of the virtual MacOS (not the host one running on my MacBook). Then 2 months from now, when my new macbook arrives, I'll simply copy one of these backups to my new macbook and I'm ready to go!