Derivations/Msty: Package msty

derivations/default.nix

@@ -6,4 +6,5 @@
   # Obsolete derivations are kept in "1_deprecated" for reference.
 
   monolisa = pkgs.callPackage ./monolisa {};
+  msty = pkgs.callPackage ./msty {};
 }

derivations/msty/default.nix

@@ -0,0 +1,28 @@
+{
+  appimageTools,
+  fetchurl,
+  makeWrapper,
+}: let
+  pname = "msty";
+  version = "1.9.2";
+  src = fetchurl {
+    url = "https://assets.msty.app/prod/latest/linux/amd64/Msty_x86_64_amd64.AppImage";
+    sha256 = "sha256-Z4t0EcV9X4g5X0lBwipiMdP8lgPuBkhykAIKjHSUpnI=";
+  };
+  appimageContents = appimageTools.extractType2 {inherit pname version src;};
+in
+  appimageTools.wrapType2 {
+    inherit pname version src;
+
+    nativeBuildInputs = [makeWrapper];
+
+    extraInstallCommands = ''
+      install -m 444 -D ${appimageContents}/msty.desktop -t $out/share/applications
+      substituteInPlace $out/share/applications/msty.desktop \
+              --replace 'Exec=AppRun' 'Exec=${pname}'
+      install -m 444 -D ${appimageContents}/msty.png \
+              $out/share/icons/hicolor/256x256/apps/msty.png
+      wrapProgram $out/bin/${pname} \
+              --set XDG_CURRENT_DESKTOP GNOME
+    '';
+  }