Editing Finder Comments

I am having some trouble doing this, so I have to ask - is it permissible to modify Finder Comments for files from an App Store app, written in xCode?

If so, is it best to try and do it with SwiftUI or execute an Apple Script?

All of the Swift I have tried does not seem to actually save the Comment to be able to retrieve it in Finder.

Edit: my goal is to be able to search for files with Finder/Spotlight and have them show up based off of this metadata that I want to add - if you have another suggested way of doing this, I am all ears.

TIA!