Add desktop file and icon

flake.nix

@@ -86,11 +86,26 @@
 
         # Build the actual crate itself, reusing the dependency
         # artifacts from above.
-        myCrate = craneLib.buildPackage (commonArgs // { inherit cargoArtifacts; });
+        myCrate = craneLib.buildPackage (
+          commonArgs
+          // {
+            inherit cargoArtifacts;
+          }
+          // {
+            postInstall = ''
+              mkdir -p $out/share/applications
+              cp ${./sheet-organizer.desktop} $out/share/applications/sheet-organizer.desktop
+
+              mkdir -p $out/share/icons
+              cp ${./sheet-organizer.png} $out/share/icons/sheet-organizer.png
+            '';
+          }
+        );
 
         # Also run the crate tests under cargo-tarpaulin so that we can keep
         # track of code coverage
         myCrateCoverage = craneLib.cargoTarpaulin (commonArgs // { inherit cargoArtifacts; });
+
       in
       {
         packages.default = myCrate;