diff --git a/Makefile b/Makefile
index 5c4e5176..344b987e 100644
--- a/Makefile
+++ b/Makefile
@@ -20,16 +20,25 @@ black:
 	black examples docs pandagg tests setup.py
 
 develop:
-	-python -m pip install -e .
+	-python -m pip install -e ".[develop]"
 
 doc-references:
 	-make -C docs api-doc
 
 tests:
-    pytest
+	pytest
 
 coverage:
 	coverage run --source=./pandagg -m pytest
 	coverage report
 
-check: black doc-references
+check: doc-references black lint
+
+create_dist: check
+	python setup.py sdist bdist_wheel
+
+test_dist: create_dist
+	twine upload -r testpypi dist/*
+
+upload_dist:
+	twine upload dist/*
diff --git a/pandagg/node/aggs/abstract.py b/pandagg/node/aggs/abstract.py
index 0f899e3e..18b3152b 100644
--- a/pandagg/node/aggs/abstract.py
+++ b/pandagg/node/aggs/abstract.py
@@ -98,7 +98,9 @@ def valid_on_field_type(cls, field_type):
             return field_type in cls.WHITELISTED_MAPPING_TYPES
         if cls.BLACKLISTED_MAPPING_TYPES is not None:
             return field_type not in cls.BLACKLISTED_MAPPING_TYPES
-        return False
+        # by default laxist
+        # TODO - constraint to only allowed types
+        return True
 
     def to_dict(self):
         """
diff --git a/setup.py b/setup.py
index 93e505c9..5cc40cb4 100644
--- a/setup.py
+++ b/setup.py
@@ -1,7 +1,7 @@
 #!/usr/bin/env python
 # -*- coding: utf-8 -*-
 
-__version__ = "0.2.0"
+__version__ = "0.2.1"
 
 import os
 
@@ -17,11 +17,14 @@
 develop_requires = [
     "pre-commit",
     "black",
+    "coverage",
     "flake8",
     "pytest",
     "pytest-cov",
     "mock",
     "pandas",
+    "Sphinx",
+    "twine",
 ]
 
 setup(