@rubas did you actually test this? It doesn't compile on Big Sur. This package needs to be updated to utilise darwin-stubs, otherwise the private frameworks it relies on aren't present, which it needs to build

You can try builds of the package with: nix-build -A yabai

@cmacrae
Thank you! You re correct. It's no building. I had it installed earlier via brew without any issues.

First time I hear about darwin-stubs ... sadly I'm of no help.

Is @koekeishiya already aware of this?

clang src/manifest.m src/osax/sa_loader.c src/osax/sa_payload.c src/osax/sa_mach_bootstrap.c -std=c99 -Wall -g -O0 -fvisibility=hidden -mmacosx-version-min=10.13 -F/System/Library/PrivateFrameworks -framework Carbon -framework Cocoa -framework CoreServices -framework SkyLight -framework ScriptingBridge -o bin/yabai
ld: framework not found SkyLight
clang-7: error: linker command failed with exit code 1 (use -v to see invocation)
make: *** [makefile:59: bin/yabai] Error 1

@rubas No worries. Make sure you're testing builds (as indicated in your checked items in the PR description) before submitting a PR :)

This doesn't concern @koekeishiya. This is a package maintained outside of his purview.
Using an Xcode toolchain (as in Homebrew, for instance), yabai builds fine on Big Sur.

This is a nuance imposed by nixpkgs. I plan on updating the package to use darwin-stubs at some point, I just don't have the time at the moment

No worries. Make sure you're testing builds (as indicated in your checked items in the PR description) before submitting a PR :)

🙄 🙈

I plan on updating the package to use darwin-stubs at some point, I just don't have the time at the moment

I do not know how complicated this is ... but I'm happy to offer a coffee, if I don't have to move back to brew.

Haha, it's all good! At least you know now 👍
That's very kind of you, but not to worry, I'm a heavy user of yabai and only manage my systems with Nix. So, rest assured I'll get around to it soon :)

In the time being, you can use an overlay that simply grabs the latest binary from the yabai releases:

self: super: {
  yabai = super.yabai.overrideAttrs (o: rec {
    version = "3.3.6";
    src = builtins.fetchTarball {
      url = "https://github.com/koekeishiya/yabai/releases/download/v${version}/yabai-v${version}.tar.gz";
      sha256 = "00iblhdx89wyvasl3hm95w91z4mrwb7pbfdvg9cmpcnqphbfs5ld";
    };

    installPhase = ''
      mkdir -p $out/bin
      mkdir -p $out/share/man/man1/
      cp ./archive/bin/yabai $out/bin/yabai
      cp ./archive/doc/yabai.1 $out/share/man/man1/yabai.1
    '';
  });
}

For anyone finding this issue and wanting to install the latest Yabai (3.3.8 as of this comment) from the GitHub binaries, I had to change the overlay @cmacrae posted to the following:

self: super: {
  yabai = super.yabai.overrideAttrs (
    o: rec {
      version = "3.3.8";
      src = builtins.fetchTarball {
        url = "https://github.com/koekeishiya/yabai/releases/download/v${version}/yabai-v${version}.tar.gz";
        sha256 = "1qh1vf52j0b3lyrm005c8c98s39rk1lq61rrq0ml2yr4h77rq3xv";
      };

      installPhase = ''
        mkdir -p $out/bin
        mkdir -p $out/share/man/man1/
        cp ./bin/yabai $out/bin/yabai
        cp ./doc/yabai.1 $out/share/man/man1/yabai.1
      '';
    }
  );
}

My Nix version

$ nix --version
nix (Nix) 2.4pre20210326_dd77f71

Apparently no longer unpacks tarballs into an archive directory, but just puts the contents directly in the working directory.

Nice, thanks for sharing @aergonaut 👍
As a general update, for anyone who's wondering what's going on with the upkeep of the yabai package: it uses symbols which aren't available in nixpkgs at the moment, due to the outdated Apple SDK.

There's a tracking issue for this amongst other things related to macOS.
Some pretty major refactoring has been done in prep for newer SDK support, but there's still a lot of work left. So, until that's done, I'm afraid this package will remain at this point.