What distinguishes the convenience and required options when specifying dependencies or requirements in a project?

In the context of iOS and dependency management (for example, in Swift Package Manager or Xcode), the options required and convenience determine how mandatory or optional a dependency or requirement is.

• required — means that the dependency or requirement must be fulfilled or present for the project to build and function correctly. Without it, the project will not compile or will not work properly.

• convenience — is an optional dependency or requirement added for convenience, to extend functionality, or improve user experience, but it is not critical. The project can work without them.

Example: if you have a library that adds additional functionality but does not affect the main logic, it can be marked as convenience. If the project cannot be built without a dependency, it should be marked as required.