Not certain if this works, but this should help finding data maybe.

crc/services/file_system_service.py

@@ -32,6 +32,10 @@ class FileSystemService(object):
     def category_path(name: str):
         return os.path.join(FileSystemService.root_path(), name)
 
+    @staticmethod
+    def library_path(name: str):
+        return os.path.join(FileSystemService.root_path(), FileSystemService.LIBRARY_SPECS, name)
+
     @staticmethod
     def category_path_for_spec(spec):
         if spec.is_master_spec:

crc/services/spec_file_service.py

@@ -51,17 +51,22 @@ class SpecFileService(FileSystemService):
             SpecFileService.set_primary_bpmn(workflow_spec, file_name, binary_data)
         return file
 
-
     @staticmethod
     def get_data(workflow_spec: WorkflowSpecInfo, file_name: str):
         file_path = SpecFileService.file_path(workflow_spec, file_name)
+        if not os.path.exists(file_path):
+            # If the file isn't here, it may be in a library
+            for lib in workflow_spec.libraries:
+                lib_path = SpecFileService.library_path(lib)
+                file_path = SpecFileService.file_path(workflow_spec, file_name)
+                if os.path.exists(file_path):
+                    break
         if not os.path.exists(file_path):
             raise ApiError("unknown_file", f"So file found with name {file_name} in {workflow_spec.display_name}")
         with open(file_path, 'rb') as f_handle:
             spec_file_data = f_handle.read()
         return spec_file_data
 
-
     @staticmethod
     def file_path(spec: WorkflowSpecInfo, file_name: str):
         return os.path.join(SpecFileService.workflow_path(spec), file_name)

crc/services/update_service.py

@@ -0,0 +1,6 @@
+
+# loop over all the categories in the database
+# assure we have a directory with the correct name
+# assure it contains a valid json file called categories.json
+
+categories = db.