If you’re running an interpreted/JIT language, Big Sur could return that it’s either 10.16 or 11.0, depending on the version of the environment.
Running an AppleScript which tries to run a shell command with root privileges can fail. Here’s why, and what we can’t do about it.
When you can’t save to somewhere else, only to your startup volume, even though you’ve shown user intent. Privacy through perversity perhaps?
Classic resource forks passed into Mac OS X, but were deprecated by Apple in 10.8. Now in Catalina they can stop working: is this a new security measure?
Do you want Photos to show its library selection dialog when it opens? Here’s one solution without the Option key.
The new read-only system volume changes a lot of paths on which scripts and apps rely. Here’s some experience in fixing the problems that result.
Apple’s latest information on notarization can appear alarming and contradictory. Do you need to notarize your own apps and scripts? More helpful guidance.
Searching for third party Quick Actions, I came across the excellent Yoink, the only app which seems to have solved them. Or has it?
The built-in Quick Actions and those bundled in installed apps are managed by the daemon pkd, and PlugInKit. Not so Automator workflows, though.
The problem of Undo is a major consideration when building or using any Quick Action, Automator workflow, AppleScript, or other lightweight solution.