cctools-port

I've manually done it before (on Linux). Technologically it's not that hard to do, but legally is where it becomes a problem. IIRC the Xcode license (which applies to the iOS SDKs) requires you to use them on Apple branded computers. I don't know why Apple cares so much about that, especially since they're already collecting their yearly $100 tax from developers on top of the 30% revenue cut. I guess at their size, extracting every last penny is how you get to a trillion dollar valuation? So unless you have a strong legal defense ready, you should probably just pay Apple. EDIT: I should clarify that by "it's not that hard to do", I mean that it's easy because someone else already did the hard part :) https://github.com/tpoechtrager/cctools-port

You can use alternative toolchains like like cctools-port[1] and xcbuild[2]. See, for example, this article [3] on how to build Swift UI apps for iOS using Linux. [1] https://github.com/tpoechtrager/cctools-port [2] https://github.com/apple-cross-toolchain/xcbuild [3] https://thi.im/posts/cross-compiling-for-ios-part-1-build-sw...

You can actually do this now, without emulation: https://github.com/tpoechtrager/cctools-port Zig are also working on it: https://zig.news/monthly/zig-monthly-august-2021-ios-support... The pioneer of software dictatorship will probably make this impossible or illegal as soon as it gains any traction though. And people will probably congratulate them for it in the name of "security".

You’re right, but we’re talking about hacks here, right? Technically you can compile iOS stuff on Linux or jailbreaked iOS, all you need is clang and apple toolchain. Examples: https://github.com/theos/theos/wiki or https://github.com/tpoechtrager/cctools-port/

I currently use cctools (https://github.com/tpoechtrager/cctools-port.git) to cross compile iOS apps from my 32-bit Linux computer. Then I load onto my phone using Cydia Impactor. It's much more flexible to do it this way than using the latest version of Xcode. I can compile a 32-bit app that runs on iOS 6, or I can compile a 64-bit app using the iOS 7 sdk. I also prefer compiling OS X apps on my Linux box, because I can use whichever version of clang I want, but compile it so that it will run on Snow Leopard. The dev environment for Snow Leopard is missing a lot of the newer features of Objective-C, so I find it easier to do this, than to use the latest version of macOS and Xcode. I only use Objective-C, I haven't tried cross compiling Swift, simply because I do not like the language.