lumafly: use dotnet sdk 9 as sdk 7 has been marked insecure

pkgs/by-name/lu/lumafly/package.nix

@@ -17,15 +17,21 @@ buildDotnetModule rec {
   src = fetchFromGitHub {
     owner = "TheMulhima";
     repo = "lumafly";
-    rev = "v${version}";
+    rev = "refs/tags/v${version}";
     hash = "sha256-GVPMAwxbq9XlKjMKd9G5yUol42f+6lSyHukN7NMCVDA=";
   };
 
+  # Use .NET 9.0 since 7.0 is EOL
+  postPatch = ''
+    substituteInPlace Lumafly/Lumafly.csproj \
+        --replace "net7.0" "net9.0"
+  '';
+
   projectFile = "Lumafly/Lumafly.csproj";
 
   nugetDeps = ./deps.nix;
 
-  dotnet-sdk = dotnetCorePackages.sdk_7_0;
+  dotnet-sdk = dotnetCorePackages.sdk_9_0;
 
   selfContainedBuild = true;
 
@@ -40,21 +46,25 @@ buildDotnetModule rec {
     copyDesktopItems
   ];
 
+  executables = [ "Lumafly" ];
+
   postFixup = ''
     # Icon for the desktop file
     icotool -x $src/Lumafly/Assets/Lumafly.ico
     install -D Lumafly_1_32x32x32.png $out/share/icons/hicolor/32x32/apps/lumafly.png
   '';
 
-  desktopItems = [(makeDesktopItem {
-    desktopName = "Lumafly";
-    name = "lumafly";
-    exec = "Lumafly";
-    icon = "lumafly";
-    comment = meta.description;
-    type = "Application";
-    categories = [ "Game" ];
-  })];
+  desktopItems = [
+    (makeDesktopItem {
+      desktopName = "Lumafly";
+      name = "lumafly";
+      exec = "Lumafly";
+      icon = "lumafly";
+      comment = "A cross platform mod manager for Hollow Knight written in Avalonia";
+      type = "Application";
+      categories = [ "Game" ];
+    })
+  ];
 
   meta = {
     description = "A cross platform mod manager for Hollow Knight written in Avalonia";