As someone who's never had a Mac, I get the impression Xcode is the equivalent of Windows Update circa IE6 (ActiveX control and all) - so horribly and messily integrated into the system, that adequately sandboxing it such that it doesn't fall over every 6 seconds would be the equivalent of making a perpetual motion machine that can turn yak shavings into kitchen sinks.

The person who commits to designing, building and maintaining this - and achieves their goal - will not be sane. Carefully consider before inviting them to developer conferences.

(NB, as this is currently at -1: The bit above about insanity is meant as a lighthearted joke :P)

NB2, now this is fluctuating even further: This was written with a humorous note but sincerely. If I'm wrong about Xcode I'd be happy to learn as much - and glad to be wrong, as well. I've just heard that Xcode is a disaster to maintain, and that eg merely downgrading Xcode version can break all of macOS, requiring a full reinstall. This being said, having Xcode work on Linux (and Windows...) would be awesome, in theory.

The readme has an example of unpacking Xcode and compiling a simple helloworld program using the CLI.