Derivations/Unityhub: Add custom unityhub 3.13 derivation with fixed libxml and removed Gconf

nixpkgs issues/419634#issuecomment-3052547176

derivations/default.nix

@@ -7,5 +7,6 @@
 
   monolisa = pkgs.callPackage ./monolisa {};
   msty = pkgs.callPackage ./msty {};
+  unityhub = pkgs.callPackage ./unityhub {};
   tidal-dl-ng = pkgs.callPackage ./tidal-dl-ng {};
 }

derivations/unityhub/default.nix

@@ -1,4 +1,3 @@
-# Taken from pull/422785
 {
   lib,
   stdenv,
@@ -47,7 +46,15 @@ stdenv.mkDerivation rec {
         ++ extraPkgs pkgs;
 
     multiPkgs = pkgs:
-      with pkgs;
+      with pkgs; let
+        libxml2-legacy = libxml2.overrideAttrs (previousAttrs: rec {
+          version = "2.13.8";
+          src = fetchurl {
+            url = "mirror://gnome/sources/libxml2/${lib.versions.majorMinor version}/libxml2-${version}.tar.xz";
+            hash = "sha256-J3KUyzMRmrcbK8gfL0Rem8lDW4k60VuyzSsOhZoO6Eo=";
+          };
+        });
+      in
         [
           # Unity Hub ldd dependencies
           cups
@@ -94,7 +101,7 @@ stdenv.mkDerivation rec {
           xorg.libXcursor
           glib
           gdk-pixbuf
-          libxml2
+          libxml2-legacy
           zlib
           clang
           git # for git-based packages in unity package manager

flake.nix

@@ -77,10 +77,6 @@
     # Realtime audio
     # musnix.url = "github:musnix/musnix";
     # musnix.inputs.nixpkgs.follows = "nixpkgs";
-
-    # Pinned versions
-    # v4l2loopback-pinned.url = "github:nixos/nixpkgs/4684fd6b0c01e4b7d99027a34c93c2e09ecafee2";
-    # unityhub-pinned.url = "github:huantianad/nixpkgs/9542b0bc7701e173a10e6977e57bbba68bb3051f";
   };
 
   # Outputs is a function that takes the inputs as arguments.

home/christoph/nixinator/default.nix

@@ -126,7 +126,7 @@
 
         # Unity Stuff
         # TODO: Unity module
-        # unityhub # TODO: Wait for https://nixpk.gs/pr-tracker.html?pr=422785
+        unityhub
         rider-unity
         dotnetCore
         mono
@@ -214,7 +214,7 @@
           "com.usebottles.bottles"
           "io.github.lawstorant.boxflat"
 
-          "com.unity.UnityHub"
+          # "com.unity.UnityHub"
         ];
 
         overrides = {

overlays/default.nix

@@ -20,7 +20,7 @@
     # Overriding specific packages from a different nixpkgs (e.g. a pull request)
     # can be done like this. Note that this creates an additional nixpkgs instance.
     # https://github.com/NixOS/nixpkgs/issues/418451
-    # unityhub_pinned_3_13 =
+    # unityhub_3_13 =
     #   (import inputs.unityhub-pinned {
     #     config.allowUnfree = true;
     #     localSystem = {inherit (prev) system;};