From 6db7efe71bae8f92a6a0cbe22e5fe4a972342ed3 Mon Sep 17 00:00:00 2001
From: Christoph Urlacher <christoph.urlacher@protonmail.com>
Date: Tue, 22 Jul 2025 19:24:00 +0200
Subject: [PATCH] Derivations/Unityhub: Add custom unityhub 3.13 derivation
 with fixed libxml and removed Gconf

nixpkgs issues/419634#issuecomment-3052547176
---
 derivations/default.nix                             |  1 +
 .../unityhub_3_13 => unityhub}/default.nix          | 13 ++++++++++---
 .../unityhub_3_13 => unityhub}/update.sh            |  0
 flake.nix                                           |  4 ----
 home/christoph/nixinator/default.nix                |  4 ++--
 overlays/default.nix                                |  2 +-
 6 files changed, 14 insertions(+), 10 deletions(-)
 rename derivations/{1_deprecated/unityhub_3_13 => unityhub}/default.nix (90%)
 rename derivations/{1_deprecated/unityhub_3_13 => unityhub}/update.sh (100%)

diff --git a/derivations/default.nix b/derivations/default.nix
index 0aa3543f..6c7898c1 100644
--- a/derivations/default.nix
+++ b/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 {};
 }
diff --git a/derivations/1_deprecated/unityhub_3_13/default.nix b/derivations/unityhub/default.nix
similarity index 90%
rename from derivations/1_deprecated/unityhub_3_13/default.nix
rename to derivations/unityhub/default.nix
index 1bc52523..cf2ecd7d 100644
--- a/derivations/1_deprecated/unityhub_3_13/default.nix
+++ b/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
diff --git a/derivations/1_deprecated/unityhub_3_13/update.sh b/derivations/unityhub/update.sh
similarity index 100%
rename from derivations/1_deprecated/unityhub_3_13/update.sh
rename to derivations/unityhub/update.sh
diff --git a/flake.nix b/flake.nix
index 437258fe..048a8691 100644
--- a/flake.nix
+++ b/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.
diff --git a/home/christoph/nixinator/default.nix b/home/christoph/nixinator/default.nix
index 42c4dfd0..e8711999 100644
--- a/home/christoph/nixinator/default.nix
+++ b/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 = {
diff --git a/overlays/default.nix b/overlays/default.nix
index 8329b36e..b63b9a11 100644
--- a/overlays/default.nix
+++ b/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;};