nix: add partyfuse

One downside of the way the nix ecosystem works is that MacFUSE needs to
be installed manually. Luckily the script tells you that already!

contrib/package/nix/partyfuse/default.nix

@@ -0,0 +1,26 @@
+{
+  stdenvNoCC,
+  copyparty,
+  python3,
+  makeBinaryWrapper,
+}:
+let
+  python = python3.withPackages (p: [ p.fusepy ]);
+in
+stdenvNoCC.mkDerivation {
+  pname = "partyfuse";
+  inherit (copyparty) version meta;
+  src = ../../../..;
+
+  nativeBuildInputs = [ makeBinaryWrapper ];
+
+  installPhase = ''
+    runHook preInstall
+
+    install -Dm444 bin/partyfuse.py -t $out/share/copyparty
+    makeWrapper ${python.interpreter} $out/bin/partyfuse \
+      --add-flag $out/share/copyparty/partyfuse.py
+
+    runHook postInstall
+  '';
+}

flake.nix

@@ -17,6 +17,10 @@
           ffmpeg = self.ffmpeg-full;
         };
 
+        partyfuse = super.callPackage ./contrib/package/nix/partyfuse {
+          inherit copyparty;
+        };
+
         u2c = super.callPackage ./contrib/package/nix/u2c {
           inherit copyparty;
         };
@@ -35,7 +39,11 @@
       in
       {
         packages = {
-          inherit (pkgs) copyparty u2c;
+          inherit (pkgs)
+            copyparty
+            partyfuse
+            u2c
+            ;
           default = self.packages.${system}.copyparty;
         };