need to rewrite the ujust:

https://github.com/projectbluefin/common/blob/77b4c44e590124c92898548b5c2d5965c81af534/system_files/bluefin/usr/share/ublue-os/just/system.just#L67C1-L83C103

reference commit:
projectbluefin/common@ac474a8

tangentially related to: #43

one format for everything, so ujust install-system-flatpak calls brew bundle install --file=/usr/share/ublue-os/homebrew/system-flatpaks.Brewfile

We would need to rewrite the logic on the iso to strip away the "flatpak" at the front. We can't use brew bundle install on the iso build.

This is not super important for us right now, but we should just use this format as it is used in Brew and test if the runtimes are getting installed with brew (org.gtk.Gtk3theme.Breeze)