diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 6c38987..0f188bf 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -31,7 +31,7 @@ jobs:
             cmake: -DCMAKE_PREFIX_PATH=D:/a/qtk/qtk/Qt/$QT_VERSION/mingw81_64/ $CONFIG
             flags: ''
           - os: macos-latest
-            cmake: -DCMAKE_PREFIX_PATH=/home/runner/work/qtk/Qt/$QT_VERSION/gcc_64/ $CONFIG
+            cmake: -DCMAKE_PREFIX_PATH=/home/runner/work/qtk/Qt/$QT_VERSION/gcc_64/ -Dfdopen=fdopen $CONFIG
             flags: -j $(nproc)
 
     runs-on: ${{ matrix.os }}
diff --git a/CMakeLists.txt b/CMakeLists.txt
index da5cb99..33b7950 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -157,8 +157,15 @@ list(APPEND VAR_NAMES QT6_INSTALL_PLUGINS)
 
 # Find Assimp.
 if(QTK_SUBMODULES)
+  if(APPLE)
+    # Avoid zlib redefining fdopen, causing build failures in apple clang.
+    # https://github.com/assimp/assimp/issues/6118
+    add_compile_definitions(-Dfdopen=fdopen)
+  endif()
+  if(NOT WIN32)
+    add_compile_options(-fPIC)
+  endif()
   # Required to statically link.
-  add_compile_options(-fPIC)
   set(BUILD_SHARED_LIBS OFF CACHE STRING "Build static assimp libs" FORCE)
   set(ASSIMP_BUILD_ZLIB ON CACHE STRING "Build Zlib with assimp." FORCE)
   set(
@@ -175,6 +182,14 @@ if(QTK_SUBMODULES)
       "${CMAKE_CURRENT_SOURCE_DIR}/extern/assimp/assimp/"
       EXCLUDE_FROM_ALL
   )
+  install(
+      TARGETS assimp zlibstatic
+      EXPORT qtk_export
+      COMPONENT qtk
+      ARCHIVE DESTINATION lib
+      LIBRARY DESTINATION lib
+      RUNTIME DESTINATION bin
+  )
 else()
   find_package(assimp REQUIRED)
 endif()
diff --git a/README.md b/README.md
index 41d700e..c884041 100644
--- a/README.md
+++ b/README.md
@@ -90,7 +90,7 @@ The Ubuntu apt repositories contain all the packages we need to build all target
 To build Qtk desktop application with the scene in the screenshots below run the following commands.
 
 ```bash
-sudo apt update && sudo apt install cmake build-essential git ccache libxkbcommon-dev libassimp-dev qt6-base-dev qt6-tools-dev
+sudo apt update && sudo apt install cmake build-essential git ccache libxkbcommon-dev libassimp-dev qt6-base-dev qt6-tools-dev zlib1g-dev
 cmake -DQTK_GUI_SCENE=ON -B build
 cmake --build build
 ./build/bin/qtk_gui
diff --git a/extern/assimp/assimp b/extern/assimp/assimp
index 5d5496f..e0b5234 160000
--- a/extern/assimp/assimp
+++ b/extern/assimp/assimp
@@ -1 +1 @@
-Subproject commit 5d5496f1ad895297cede723b3c96b513263f82ed
+Subproject commit e0b52347c6e52de2827ec957a9ebf00ce3c54f79