Should I register(?) my app extension?

Hi,

I'm developing quick look extensions of my app's custom files to display previews and thumbnails in the finder. When I developed and debugged these extensions, they were listed on the "added extensions" in the System Settings > Privacy and Security > Extensions. And They worked.

But, they don't appear on the list when I made a package and install it on my mac or testing machine. And the quick look didn't work at all.

Should I configure build settings or packaging options to make them register(?) or work?