Another FS Bug, but it Works Against Us Edition

• MSET9 setup script added to automate and check a lot of stuff. Seems to work ok on Windows. Almost there on Linux, but stops working once sd card is removed. I would hate for users to re-run the script after every command.
• MacOS is completely no go because of the ugly arm/unicode ID1 thing- it just barfs immediately. Hopefully there is a workaround or we might have to make an SD image and use Balena Etcher or something to install it.