diff --git a/cmake/build_helpers.cmake b/cmake/build_helpers.cmake
index a53ef197c..823e80893 100644
--- a/cmake/build_helpers.cmake
+++ b/cmake/build_helpers.cmake
@@ -118,7 +118,7 @@ macro(configurePackingResources)
         endif()
     elseif (APPLE OR ${CMAKE_HOST_SYSTEM_NAME} MATCHES "Darwin")
         set(IMHEX_ICON "${IMHEX_BASE_FOLDER}/resources/dist/macos/AppIcon.icns")
-        set(BUNDLE_NAME "imhex.app")
+        set(BUNDLE_NAME "ImHex.app")
 
         if (IMHEX_GENERATE_PACKAGE)
             set(APPLICATION_TYPE MACOSX_BUNDLE)
@@ -252,9 +252,9 @@ macro(createPackage)
             add_custom_target(build-time-make-plugins-directory ALL COMMAND ${CMAKE_COMMAND} -E make_directory "${IMHEX_BUNDLE_PATH}/Contents/MacOS/plugins")
             add_custom_target(build-time-make-resources-directory ALL COMMAND ${CMAKE_COMMAND} -E make_directory "${IMHEX_BUNDLE_PATH}/Contents/Resources")
 
-            downloadImHexPatternsFiles("${IMHEX_BUNDLE_PATH}/Contents/MacOS")
+            downloadImHexPatternsFiles("${CMAKE_INSTALL_PREFIX}/${BUNDLE_NAME}/Contents/MacOS")
 
-            install(FILES ${IMHEX_ICON} DESTINATION "${IMHEX_BUNDLE_PATH}/Contents/Resources")
+            install(FILES ${IMHEX_ICON} DESTINATION "${CMAKE_INSTALL_PREFIX}/${BUNDLE_NAME}/Contents/Resources")
             install(TARGETS main BUNDLE DESTINATION ".")
 
             # Update library references to make the bundle portable
@@ -264,15 +264,17 @@ macro(createPackage)
             set(CPACK_GENERATOR "DragNDrop")
 
             set(CPACK_BUNDLE_ICON "${CMAKE_SOURCE_DIR}/resources/dist/macos/AppIcon.icns")
-            set(CPACK_BUNDLE_PLIST "${CMAKE_BINARY_DIR}/${BUNDLE_NAME}/Contents/Info.plist")
+            set(CPACK_BUNDLE_PLIST "${CMAKE_INSTALL_PREFIX}/${BUNDLE_NAME}/Contents/Info.plist")
 
             if (IMHEX_RESIGN_BUNDLE)
-                message(STATUS "Resigning bundle...")
                 find_program(CODESIGN_PATH codesign)
                 if (CODESIGN_PATH)
-                    add_custom_command(TARGET imhex_all POST_BUILD COMMAND "codesign" ARGS "--force" "--deep" "--sign" "-" "${CMAKE_BINARY_DIR}/${BUNDLE_NAME}")
+                    install(CODE "message(STATUS \"Signing bundle '${CMAKE_INSTALL_PREFIX}/${BUNDLE_NAME}'...\")")
+                    install(CODE "execute_process(COMMAND ${CODESIGN_PATH} --force --deep --sign - ${CMAKE_INSTALL_PREFIX}/${BUNDLE_NAME} COMMAND_ERROR_IS_FATAL ANY)")
                 endif()
             endif()
+
+            install(CODE [[ message(STATUS "MacOS Bundle finalized. DO NOT TOUCH IT ANYMORE! ANY MODIFICATIONS WILL BREAK IT FROM NOW ON!") ]])
         endif()
     else()
         install(TARGETS main RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR})
@@ -735,7 +737,7 @@ function(generateSDKDirectory)
     if (WIN32)
         set(SDK_PATH "./sdk")
     elseif (APPLE)
-        set(SDK_PATH "${BUNDLE_NAME}/Contents/Resources/sdk")
+        set(SDK_PATH "${CMAKE_INSTALL_PREFIX}/${BUNDLE_NAME}/Contents/Resources/sdk")
     else()
         set(SDK_PATH "share/imhex/sdk")
     endif()
diff --git a/cmake/modules/PostprocessBundle.cmake b/cmake/modules/PostprocessBundle.cmake
index 22a7e1c70..e8b0a5aa5 100644
--- a/cmake/modules/PostprocessBundle.cmake
+++ b/cmake/modules/PostprocessBundle.cmake
@@ -14,12 +14,11 @@ if(CMAKE_GENERATOR)
 	# Being called as include(PostprocessBundle), so define a helper function.
 	set(_POSTPROCESS_BUNDLE_MODULE_LOCATION "${CMAKE_CURRENT_LIST_FILE}")
 	function(postprocess_bundle out_target in_target)
-		add_custom_command(TARGET ${out_target} POST_BUILD
-			COMMAND ${CMAKE_COMMAND} -DBUNDLE_PATH="$<TARGET_FILE_DIR:${in_target}>/../.."
-				-DCODE_SIGN_CERTIFICATE_ID="${CODE_SIGN_CERTIFICATE_ID}"
-				-DEXTRA_BUNDLE_LIBRARY_PATHS="${EXTRA_BUNDLE_LIBRARY_PATHS}"
-				-P "${_POSTPROCESS_BUNDLE_MODULE_LOCATION}"
-		)
+
+		install(CODE "set(BUNDLE_PATH ${CMAKE_INSTALL_PREFIX}/${BUNDLE_NAME})")
+		install(CODE "set(CODE_SIGN_CERTIFICATE_ID ${CODE_SIGN_CERTIFICATE_ID})")
+		install(CODE "set(EXTRA_BUNDLE_LIBRARY_PATHS ${EXTRA_BUNDLE_LIBRARY_PATHS})")
+		install(SCRIPT ${_POSTPROCESS_BUNDLE_MODULE_LOCATION})
 	endfunction()
 	return()
 endif()
@@ -36,13 +35,14 @@ message(STATUS "Fixing up application bundle: ${BUNDLE_PATH}")
 
 # Make sure to fix up any included ImHex plugin.
 file(GLOB_RECURSE plugins "${BUNDLE_PATH}/Contents/MacOS/plugins/*.hexplug")
+list(APPEND plugins "${BUNDLE_PATH}/Contents/Frameworks/libimhex.dylib")
 
 
 # BundleUtilities doesn't support DYLD_FALLBACK_LIBRARY_PATH behavior, which
 # makes it sometimes break on libraries that do weird things with @rpath. Specify
 # equivalent search directories until https://gitlab.kitware.com/cmake/cmake/issues/16625
 # is fixed and in our minimum CMake version.
-set(extra_dirs "/usr/local/lib" "/lib" "/usr/lib" ${EXTRA_BUNDLE_LIBRARY_PATHS} "${BUNDLE_PATH}/Contents/MacOS/plugins")
+set(extra_dirs "/usr/local/lib" "/lib" "/usr/lib" ${EXTRA_BUNDLE_LIBRARY_PATHS} "${BUNDLE_PATH}/Contents/MacOS/plugins" "${BUNDLE_PATH}/Contents/Frameworks")
 message(STATUS "Fixing up application bundle: ${extra_dirs}")
 
 # BundleUtilities is overly verbose, so disable most of its messages