diff --git a/code_generator_funcadl_xAOD/poetry.lock b/code_generator_funcadl_xAOD/poetry.lock
index f3743e0ef..727e7c243 100644
--- a/code_generator_funcadl_xAOD/poetry.lock
+++ b/code_generator_funcadl_xAOD/poetry.lock
@@ -37,7 +37,7 @@ toml = "*"
 
 [[package]]
 name = "certifi"
-version = "2022.9.24"
+version = "2022.12.7"
 description = "Python package for providing Mozilla's CA Bundle."
 category = "main"
 optional = false
@@ -296,14 +296,11 @@ python-versions = ">=3.6"
 
 [[package]]
 name = "packaging"
-version = "21.3"
+version = "22.0"
 description = "Core utilities for Python packages"
 category = "dev"
 optional = false
-python-versions = ">=3.6"
-
-[package.dependencies]
-pyparsing = ">=2.0.2,<3.0.5 || >3.0.5"
+python-versions = ">=3.7"
 
 [[package]]
 name = "pluggy"
@@ -341,17 +338,6 @@ category = "dev"
 optional = false
 python-versions = ">=3.6"
 
-[[package]]
-name = "pyparsing"
-version = "3.0.9"
-description = "pyparsing module - Classes and methods to define and execute parsing grammars"
-category = "dev"
-optional = false
-python-versions = ">=3.6.8"
-
-[package.extras]
-diagrams = ["jinja2", "railroad-diagrams"]
-
 [[package]]
 name = "pytest"
 version = "7.2.0"
@@ -581,8 +567,8 @@ autopep8 = [
     {file = "autopep8-1.7.0.tar.gz", hash = "sha256:ca9b1a83e53a7fad65d731dc7a2a2d50aa48f43850407c59f6a1a306c4201142"},
 ]
 certifi = [
-    {file = "certifi-2022.9.24-py3-none-any.whl", hash = "sha256:90c1a32f1d68f940488354e36370f6cca89f0f106db09518524c88d6ed83f382"},
-    {file = "certifi-2022.9.24.tar.gz", hash = "sha256:0d9c601124e5a6ba9712dbc60d9c53c21e34f5f641fe83002317394311bdce14"},
+    {file = "certifi-2022.12.7-py3-none-any.whl", hash = "sha256:4ad3232f5e926d6718ec31cfc1fcadfde020920e278684144551c91769c7bc18"},
+    {file = "certifi-2022.12.7.tar.gz", hash = "sha256:35824b4c3a97115964b408844d64aa14db1cc518f6562e8d7261699d1350a9e3"},
 ]
 charset-normalizer = [
     {file = "charset-normalizer-2.1.1.tar.gz", hash = "sha256:5a3d016c7c547f69d6f81fb0db9449ce888b418b5b9952cc5e6e66843e9dd845"},
@@ -755,8 +741,8 @@ mccabe = [
     {file = "mccabe-0.7.0.tar.gz", hash = "sha256:348e0240c33b60bbdf4e523192ef919f28cb2c3d7d5c7794f74009290f236325"},
 ]
 packaging = [
-    {file = "packaging-21.3-py3-none-any.whl", hash = "sha256:ef103e05f519cdc783ae24ea4e2e0f508a9c99b2d4969652eed6a2e1ea5bd522"},
-    {file = "packaging-21.3.tar.gz", hash = "sha256:dd47c42927d89ab911e606518907cc2d3a1f38bbd026385970643f9c5b8ecfeb"},
+    {file = "packaging-22.0-py3-none-any.whl", hash = "sha256:957e2148ba0e1a3b282772e791ef1d8083648bc131c8ab0c1feba110ce1146c3"},
+    {file = "packaging-22.0.tar.gz", hash = "sha256:2198ec20bd4c017b8f9717e00f0c8714076fc2fd93816750ab48e2c41de2cfd3"},
 ]
 pluggy = [
     {file = "pluggy-1.0.0-py2.py3-none-any.whl", hash = "sha256:74134bbf457f031a36d68416e1509f34bd5ccc019f0bcc952c7b909d06b37bd3"},
@@ -774,10 +760,6 @@ pyflakes = [
     {file = "pyflakes-2.5.0-py2.py3-none-any.whl", hash = "sha256:4579f67d887f804e67edb544428f264b7b24f435b263c4614f384135cea553d2"},
     {file = "pyflakes-2.5.0.tar.gz", hash = "sha256:491feb020dca48ccc562a8c0cbe8df07ee13078df59813b83959cbdada312ea3"},
 ]
-pyparsing = [
-    {file = "pyparsing-3.0.9-py3-none-any.whl", hash = "sha256:5026bae9a10eeaefb61dab2f09052b9f4307d44aee4eda64b309723d8d206bbc"},
-    {file = "pyparsing-3.0.9.tar.gz", hash = "sha256:2b020ecf7d21b687f219b71ecad3631f644a47f01403fa1d1036b0c6416d70fb"},
-]
 pytest = [
     {file = "pytest-7.2.0-py3-none-any.whl", hash = "sha256:892f933d339f068883b6fd5a459f03d85bfcb355e4981e146d2c7616c21fef71"},
     {file = "pytest-7.2.0.tar.gz", hash = "sha256:c4014eb40e10f11f355ad4e3c2fb2c6c6d1919c73f3b5a433de4708202cade59"},
diff --git a/code_generator_funcadl_xAOD/servicex/xaod_code_generator/__init__.py b/code_generator_funcadl_xAOD/servicex/xaod_code_generator/__init__.py
index b86dba71e..886957c58 100644
--- a/code_generator_funcadl_xAOD/servicex/xaod_code_generator/__init__.py
+++ b/code_generator_funcadl_xAOD/servicex/xaod_code_generator/__init__.py
@@ -25,6 +25,7 @@
 # CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 # OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+import os
 
 from servicex.xaod_code_generator.ast_translator import AstAODTranslator
 import servicex_codegen
@@ -35,8 +36,12 @@ def create_app(test_config=None, provided_translator=None):
     # We need access to the App's config to determine translater backend before we create
     # the app, so drive the flask config machinery directly
     app_config = Config(".")
+
     app_config.from_envvar("APP_CONFIG_FILE")
 
+    if 'CODEGEN_CONFIG_FILE' in os.environ:
+        app_config.from_envvar('CODEGEN_CONFIG_FILE')
+
     return servicex_codegen.create_app(test_config,
                                        provided_translator=provided_translator
                                        if provided_translator else