Some flags are sensitive, if it's deleted, make sure it's also easy to restore as well. Currently, in gorm, everything is soft deleted. I think this feature will need the following changes:

• UI front page, to not only show the current flags, but also a section to show deleted flags.
• A new parameter in GET /flags?deleted=true to get deleted flags
• A new route POST /flags/<id>/restore to restore deleted flags
• A new UI button to restore deleted flags