I'm glad you're interested. We really should write progress report blog posts or something, similar to Dolphin emulator or RPCS3. Yes, the Xcode command line tools should work for the most part when running in Darling. If you try to use Darling for development please create issues on our GitHub if an individual tool crashes or otherwise fails to work.

Unfortunately, git doesn't work at the moment, however this can be worked around by using Linux git since Darling works in your Linux home folder.

One cool thing that works is lldb, which for the most part fully works.

Darling also supports mounting disk images and installing .pkgs, which is really helpful.

In short, we support most of what you can do from Terminal already.

Homebrew and MacPorts currently don't but once we get them working they should make it easier to install packages in a Darling prefix.

We also have binary compatibility with standard Mach-Os from macOS.

Unfortunately, the other project members (around four of us) and me are often busy with our lives and don't always have the time needed to advance Darling, so we are exploring how we can improve outreach to attract more developers.

While we are similar to the WINE project in goal, at the moment we have nowhere near the resources they do, so it is difficult to accomplish our goals.