I’m also one of the maintainers of Theos :) When you use Theos outside macOS, you have to install a toolchain and SDK. The toolchain is built from LLVM + cctoo

I’m also one of the maintainers of Theos :) When you use Theos outside macOS, you have to install a toolchain and SDK. The toolchain is built from LLVM + cctools, and is in fact very similar to the one we use in xtool (I maintain both.) The SDK is hosted on GitHub and I could’ve decided to use this instead of getting the user to supply a copy of Xcode, but the copyright status is iffy; there’s an argument to be made in light of Google v. Oracle but I didn’t want to take any chances.