I assumed that I should rather refer than try to create a framework
Yes, a link and a link to it, if you do not need only a little. at this point, the separation of the bits you want can be extended (also depends on the layout of lib / also depends). you should prefer a link and a link because it usually minimizes the time of your service, especially if you use it in several projects.
I tried copying the existing xcode project file "Hello World" to my project, however this did not seem to work
you do not create a project, you add an xcode library project to your application or library, install lib as a dependency, add a library to your search paths if necessary, and then link to the library.
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. . lib, , .
- Add Files Xcode?
, .