diff --git a/installer.py b/installer.py
index 72a6dd7f5..576949b47 100644
--- a/installer.py
+++ b/installer.py
@@ -447,7 +447,7 @@ def get_platform():
             'system': platform.system(),
             'release': release,
             'python': platform.python_version(),
-            'docker': os.environ.get('SD_INSTALL_DEBUG', None) is not None,
+            'docker': os.environ.get('SD_DOCKER', None) is not None,
             # 'host': platform.node(),
             # 'version': platform.version(),
         }
@@ -455,6 +455,7 @@ def get_platform():
         return { 'error': e }
 
 
+# TODO Requires pydantic 2.x before fully supporting python 3.12
 # check python version
 def check_python(supported_minors=[9, 10, 11, 12], reason=None):
     t_start = time.time()
@@ -537,6 +538,7 @@ def install_rocm_zluda():
         log.info('Using CPU-only torch')
         return os.environ.get('TORCH_COMMAND', 'torch torchvision')
 
+    # TODO Requires pydantic 2.x before fully supporting python 3.12
     check_python(supported_minors=[10, 11], reason='ROCm or ZLUDA backends require Python 3.10 or 3.11')
     log.info('ROCm: AMD toolkit detected')
     os.environ.setdefault('PYTORCH_HIP_ALLOC_CONF', 'garbage_collection_threshold:0.8,max_split_size_mb:512')
@@ -659,6 +661,9 @@ def install_rocm_zluda():
 
 def install_ipex(torch_command):
     t_start = time.time()
+    # https://pytorch-extension.intel.com/installation?platform=gpu&version=v2.5.10%2Bxpu&os=linux%2Fwsl2&package=pip
+    # while IPEX supports 3.12, other components (such as pydantic 1.x) do not. Capping at 3.11 still.
+    # TODO Requires pydantic 2.x before fully supporting python 3.12
     check_python(supported_minors=[9, 10, 11, 12], reason='IPEX backend requires Python 3.9, 3.10 or 3.11')
     args.use_ipex = True # pylint: disable=attribute-defined-outside-init
     log.info('IPEX: Intel OneAPI toolkit detected')
@@ -681,7 +686,8 @@ def install_ipex(torch_command):
         os.environ.setdefault('IPEX_FORCE_ATTENTION_SLICE', '1')
 
     if "linux" in sys.platform:
-        torch_command = os.environ.get('TORCH_COMMAND', 'torch==2.5.1+cxx11.abi torchvision==0.20.1+cxx11.abi intel-extension-for-pytorch==2.5.10+xpu oneccl_bind_pt==2.5.0+xpu --extra-index-url https://pytorch-extension.intel.com/release-whl/stable/xpu/cn/')
+        # default to US server. If The China server is needed, change .../release-whl/stable/xpu/us/ to .../release-whl/stable/xpu/cn/
+        torch_command = os.environ.get('TORCH_COMMAND', 'torch==2.5.1+cxx11.abi torchvision==0.20.1+cxx11.abi intel-extension-for-pytorch==2.5.10+xpu oneccl_bind_pt==2.5.0+xpu --extra-index-url https://pytorch-extension.intel.com/release-whl/stable/xpu/us/')
         # os.environ.setdefault('TENSORFLOW_PACKAGE', 'tensorflow==2.15.1 intel-extension-for-tensorflow[xpu]==2.15.0.2')
     else:
         torch_command = os.environ.get('TORCH_COMMAND', 'torch==2.6.0+xpu torchvision==0.21.0+xpu --index-url https://download.pytorch.org/whl/test/xpu')
@@ -695,6 +701,7 @@ def install_ipex(torch_command):
 
 def install_openvino(torch_command):
     t_start = time.time()
+    # TODO Requires pydantic 2.x before fully supporting python 3.12
     check_python(supported_minors=[9, 10, 11, 12], reason='OpenVINO backend requires Python 3.9, 3.10 or 3.11')
     log.info('OpenVINO: selected')
     if sys.platform == 'darwin':