yaak: init at 2025.1.2

Add yaak to nixpkgs, credits to
[SyedAhkam](https://github.com/SyedAhkam).
https://github.com/NixOS/nixpkgs/pull/341253 That PR is still open, but
inactive so I'd like to follow with this one, in case the maintainer
doesn't manifest his intention to keep working on this package.

pkgs/by-name/ya/yaak/package.nix

@@ -0,0 +1,38 @@
+{
+  appimageTools,
+  fetchurl,
+  lib,
+}:
+appimageTools.wrapType2 rec {
+  pname = "yaak";
+  version = "2025.1.2";
+
+  src = fetchurl {
+    url = "https://github.com/mountain-loop/yaak/releases/download/v${version}/${pname}_${version}_amd64.AppImage";
+    hash = "sha256-daUB2BW0y+6TYL6V591Yx/9JtgLdyuKEhCPjfG5L4WQ=";
+  };
+
+  contents = appimageTools.extract {
+    inherit pname version src;
+    postExtract = ''
+      substituteInPlace $out/yaak.desktop --replace-fail 'yaak-app' 'yaak'
+    '';
+  };
+
+  extraInstallCommands = ''
+    install -Dm444 ${contents}/yaak.desktop $out/share/applications/yaak.desktop
+    for size in "32x32" "128x128" "256x256@2"; do
+      install -Dm444 ${contents}/usr/share/icons/hicolor/$size/apps/yaak-app.png $out/share/icons/hicolor/$size/apps/yaak.png
+    done
+  '';
+
+  meta = {
+    description = "Desktop API client for organizing and executing REST, GraphQL, and gRPC requests";
+    homepage = "https://yaak.app/";
+    license = lib.licenses.mit;
+    maintainers = with lib.maintainers; [ redyf ];
+    mainProgram = "yaak";
+    platforms = [ "x86_64-linux" ];
+    sourceProvenance = with lib.sourceTypes; [ binaryNativeCode ];
+  };
+}