diff --git a/MANIFEST.in b/MANIFEST.in
new file mode 100644
index 00000000..224c33a5
--- /dev/null
+++ b/MANIFEST.in
@@ -0,0 +1,3 @@
+include LICENSE.md
+include nw/graphics/*
+recursive-include nw/themes *
diff --git a/nw/convert/__init__.py b/nw/convert/__init__.py
new file mode 100644
index 00000000..e69de29b
diff --git a/nw/convert/file/__init__.py b/nw/convert/file/__init__.py
new file mode 100644
index 00000000..e69de29b
diff --git a/nw/convert/text/__init__.py b/nw/convert/text/__init__.py
new file mode 100644
index 00000000..e69de29b
diff --git a/nw/gui/__init__.py b/nw/gui/__init__.py
new file mode 100644
index 00000000..e69de29b
diff --git a/nw/gui/dialogs/__init__.py b/nw/gui/dialogs/__init__.py
new file mode 100644
index 00000000..e69de29b
diff --git a/nw/gui/elements/__init__.py b/nw/gui/elements/__init__.py
new file mode 100644
index 00000000..e69de29b
diff --git a/nw/gui/tools/__init__.py b/nw/gui/tools/__init__.py
new file mode 100644
index 00000000..e69de29b
diff --git a/nw/project/__init__.py b/nw/project/__init__.py
new file mode 100644
index 00000000..e69de29b
diff --git a/nw/tools/__init__.py b/nw/tools/__init__.py
new file mode 100644
index 00000000..e69de29b
diff --git a/setup.cfg b/setup.cfg
new file mode 100644
index 00000000..065ab174
--- /dev/null
+++ b/setup.cfg
@@ -0,0 +1,5 @@
+[metadata]
+license_files = LICENSE.md
+
+[bdist_wheel]
+universal = 0