I’ve developed a macOS app, but I’ve had trouble using a script to fully codesign it and package it into a .dmg file. I was only able to complete codesigning using the third-party app itself—not via command-line scripts. Is it possible to write a script that automates the entire process of codesigning the app? To provide the best user experience for those downloading the app outside of the Mac App Store, is it correct to first package it as a .app and then wrap that into a .dmg file for distribution? Currently, the app is available on the web as a .dmg. When downloaded, it appears in a folder and can be double-clicked to launch. However, macOS displays a warning that it was downloaded from the internet. Can I use a script to remove that quarantine warning? If possible, I’d appreciate a step-by-step explanation and a sample command-line script to: Codesign the app properly Package it into a signed .dmg Remove the quarantine attribute for local testing or distribution Is the reason I was only able to codesign it inside the third-party app due to how that app was built, or can this always be done from the command line?