Excellent. But the problem here is you don't have the 'construct the home' step in using software. You can (let's say) take the specs and 3d-print it. You on

Excellent. But the problem here is you don't have the 'construct the home' step in using software. You can (let's say) take the specs and 3d-print it. You only need to hire the firm for changes and bug-fixes, and, even then, if you wanted something unique you're out of luck because you have to give away your uniqueness. Maybe a better analogy would be writing songs. If you weren't allowed to copyright songs but only performances, then those who simply wrote songs would be out of luck, because those who could perform them better but couldn't write as well would simply take their work. Or if a writer couldn't copyright her book but only her readings of it.