diff --git a/main.py b/main.py
index 68b6ff7..a01a2e4 100644
--- a/main.py
+++ b/main.py
@@ -1,52 +1,12 @@
-import glob
-import sys
-import os
-from pathlib import Path
+from hub.catalog_factories.construction_catalog_factory import ConstructionCatalogFactory
 
-from hub.imports.geometry_factory import GeometryFactory
-from hub.imports.construction_factory import ConstructionFactory
-from hub.imports.usage_factory import UsageFactory
-from hub.imports.weather_factory import WeatherFactory
-from hub.exports.energy_building_exports_factory import EnergyBuildingsExportsFactory
-from hub.helpers.dictionaries import Dictionaries
+construction_catalog = ConstructionCatalogFactory('nrcan').catalog
 
-sys.path.append('./')
+print('categories')
+for name in construction_catalog.names():
+  print(name)
 
-try:
-  file_path = (Path(__file__).parent / 'data' / 'summerschool_onel_building.geojson')
-  out_path = (Path(__file__).parent / 'out_files')
-  files = glob.glob(f'{out_path}/*')
+print('archetypes')
+for name in construction_catalog.names('archetypes'):
+  print('name', name)
 
-  for file in files:
-    if file != '.gitignore':
-      os.remove(file)
-
-  print('[simulation start]')
-  city = GeometryFactory('geojson',
-                         path=file_path,
-                         height_field='citygml_me',
-                         year_of_construction_field='ANNEE_CONS',
-                         function_field='CODE_UTILI',
-                         function_to_hub=Dictionaries().montreal_function_to_hub_function).city
-
-  print(f'city created from {file_path}')
-  ConstructionFactory('nrcan', city).enrich()
-  print('enrich constructions... done')
-  UsageFactory('nrcan', city).enrich()
-  print('enrich usage... done')
-  WeatherFactory('epw', city).enrich()
-  print('enrich weather... done')
-
-  print('exporting:')
-
-  _idf = EnergyBuildingsExportsFactory('idf', city, out_path).export()
-  print('    idf exported...')
-  _idf.run()
-
-  print('[simulation end]')
-
-except Exception as ex:
-  print(ex)
-  print('error: ', ex)
-  print('[simulation abort]')
-sys.stdout.flush()