feat(packages): cal-sans package definition

flake.nix

@@ -258,6 +258,7 @@
     }: {
       audacity4 = pkgs.callPackage ./packages/audacity4 {};
       neovim = inputs.neovim.packages.${pkgs.system}.default;
+      cal-sans = pkgs.callPackage ./packages/cal-sans.nix {};
       devkit = {
         ghostty = pkgs.callPackage ./packages/devkit/ghostty.nix {
           command = "${lib.getExe self.packages.${pkgs.stdenv.hostPlatform.system}.devkit.zsh}";

packages/cal-sans.nix

@@ -0,0 +1,26 @@
+{
+  lib,
+  pkgs,
+  stdenv,
+  ...
+}:
+stdenv.mkDerivation rec {
+  name = "Cal Sans";
+  pname = "cal-sans";
+  version = "1.0.0";
+  src = pkgs.fetchzip {
+    url = "https://github.com/calcom/font/releases/download/v${version}/CalSans_Semibold_v${version}.zip";
+    stripRoot = false;
+    hash = "sha256-JqU64JUgWimJgrKX3XYcml8xsvy//K7O5clNKJRGaTM=";
+  };
+  installPhase = ''
+    runHook preInstall
+    install -m444 -Dt $out/share/fonts/truetype fonts/webfonts/*.ttf
+    runHook postInstall
+  '';
+  meta = with lib; {
+    homepage = "https://github.com/calcom/font";
+    license = licenses.ofl;
+    platforms = platforms.all;
+  };
+}