Run AppleScript from command line

osascript -e 'choose color' Ref

Standalone color picker

https://www.addictivetips.com/mac-os/use-the-color-picker-in-macos-as-a-stand-alone-app/

Create an App from a shell script

https://mathiasbynens.be/notes/shell-script-mac-apps

Hide/Show OS updates

sudo softwareupdate –ignore “macOS Catalina” sudo softwareupdate –reset-ignored