I was at a startup and Xcode compiles were getting really slow. When asked about it, it came down to the slow Swift compiler which was still early and evolving

I was at a startup and Xcode compiles were getting really slow. When asked about it, it came down to the slow Swift compiler which was still early and evolving quickly but not very quick. Ended up getting a Mac Pro with I think 64 GB (which doesn't seem quite as much now with laptops having 32GB). It wasn't me using it, but I appreciated using money to solve problems.