You don't need any apple build tools for this. The engine is an application that reads lua files you edit to make your game. Then you can repackage all that as an application.
There's an easier way: create a zip file with all your .lua files, and just drag the zip file into the LOVE app (which you can download from the website). This isn't for distribution and more for game testing, but it works perfectly fine.
For distribution on the mac store, yes. But you can make stand alone builds by including a main.lua (and other code) next to the Love executable inside of the application (you can just make a copy of it for your game).
> Compiling Mac apps requires a Mac running macOS with XCode installed
Same for iOS.
[1] https://love2d.org/wiki/Game_Distribution