Darling

[labbe5]

There is an increasingly active development effort, known as Darling, that is aiming to provide a translation layer for macOS software on Linux; it is inspired in part by Wine. While Darling isn't nearly as mature as Wine, contributors are continuing to build out capabilities that could make the project more useful to a wider group of users in the future.

Unlike Wine, Darling cannot run full macOS GUI applications such as the Xcode IDE on Linux yet. Xcode is a collection of Apple's core development tools that are used for building both macOS and iOS applications. Urquhart said that he's not using Darling in any production environment — most of his tinkering at the moment is for proof-of-concept work.

While a full-GUI macOS application won't run on Linux via Darling, that doesn't mean that macOS applications won't work. Hyatt explained that, if what you want to run can be done from the command line, there is a decent chance it will work. "In the past year we have made some big steps towards getting xcodebuild working, which allows you to compile Xcode projects from the command line," Hyatt said. "I think if we get that fully working it will really grow the project because then it would be possible to build your iOS/macOS apps on a Linux server."
https://lwn.net/Articles/794871/