flake.nix: package icon and desktop file

flake.nix

@@ -44,9 +44,11 @@ Some utility commands:
       };
       packages.${system} = {
         default = self.packages.${system}.septadrop;
-        septadrop = pkgs.rustPlatform.buildRustPackage (rustSettings // {
-          pname = "septadrop";
+        septadrop = let
           version = "1.1.0";
+        in pkgs.rustPlatform.buildRustPackage (rustSettings // {
+          pname = "septadrop";
+          inherit version;
           buildAndTestSubdir = "septadrop";
           buildInputs = with pkgs; [ csfml ];
           cargoHash = "sha256-9GoBHchjmgyIpvLlmNPdCaC378jA4zZqKQYj2hajNlU=";
@@ -54,6 +56,7 @@ Some utility commands:
             pushd septadrop
             sed -i -E "s|\"res\"|\"''${out}\/share\"|" src/config.rs
             mkdir -p $out/share
+            cp -r build/septadrop_${version}_amd64/usr/share/* $out/share
             cp -r res/* $out/share
             popd
           '';