Installation

System wide:

{
  environment.systemPackages = with nix-casks.packages.${system}; [
    font-xits # XITS
  ];
}

Home Manager:

{
  home.packages = with nix-casks.packages.${system}; [
    font-xits # XITS
  ];
}

Package Definition

{
  "pname": "font-xits",
  "version": "1.302",
  "src": {
    "url": "https://github.com/khaledhosny/xits/archive/refs/tags/v1.302.tar.gz",
    "sha256": "a396dfddde7da50ce82cae530775ab522b1d33f87ca8211634535b6325a09c2b"
  },
  "installPhase": [
    "mkdir -p \"$out/Library/Fonts/xits-bold.otf\" && cp -r \"xits-1.302/xits-bold.otf\" \"$out/Library/Fonts\"",
    "mkdir -p \"$out/Library/Fonts/xits-bolditalic.otf\" && cp -r \"xits-1.302/xits-bolditalic.otf\" \"$out/Library/Fonts\"",
    "mkdir -p \"$out/Library/Fonts/xits-italic.otf\" && cp -r \"xits-1.302/xits-italic.otf\" \"$out/Library/Fonts\"",
    "mkdir -p \"$out/Library/Fonts/xits-regular.otf\" && cp -r \"xits-1.302/xits-regular.otf\" \"$out/Library/Fonts\"",
    "mkdir -p \"$out/Library/Fonts/xitsmath-bold.otf\" && cp -r \"xits-1.302/xitsmath-bold.otf\" \"$out/Library/Fonts\"",
    "mkdir -p \"$out/Library/Fonts/xitsmath-regular.otf\" && cp -r \"xits-1.302/xitsmath-regular.otf\" \"$out/Library/Fonts\""
  ],
  "meta": {
    "homepage": "https://github.com/khaledhosny/xits"
  }
}