diff --git a/.flake8 b/.flake8
index 1d1c7f5..01e81a0 100644
--- a/.flake8
+++ b/.flake8
@@ -1,5 +1,6 @@
 # vim: ft=cfg
 [flake8]
+max-line-length = 88
 max-complexity = 7
 docstring-convention=google
 
diff --git a/Makefile b/Makefile
index 1d0b397..342d180 100644
--- a/Makefile
+++ b/Makefile
@@ -4,7 +4,7 @@ PYTHON  := python3
 VENV    := .venv
 # Minimum % coverage for tests to succeed
 MIN_COV := 50
-SRC     := setup.py app tests
+SRC     := setup.py config_skeleton tests
 
 
 # =====GENERAL=====
@@ -34,18 +34,19 @@ venv: $(VENV)/bin/activate
 ## Formatting & linting
 ### Format the codebase using black
 format: venv
-	@ '$(VENV)'/bin/black $(SRC)
 	@ '$(VENV)'/bin/isort $(SRC)
+	@ '$(VENV)'/bin/black $(SRC)
 .PHONY: format
 
 ### Lint using black & flake8
 lint: venv
 	@ '$(VENV)'/bin/flake8 $(SRC)
 	@ '$(VENV)'/bin/black --check $(SRC)
+	@ '$(VENV)'/bin/isort --check $(SRC)
 .PHONY: lint
 
 
 ## Testing
 test: venv
-	@ '$(VENV)'/bin/pytest --cov=app --cov-fail-under='$(MIN_COV)' tests/
+	@ '$(VENV)'/bin/pytest --cov=config_skeleton --cov-fail-under='$(MIN_COV)' tests/
 .PHONY: test
diff --git a/app/__init__.py b/app/__init__.py
deleted file mode 100644
index ef4e454..0000000
--- a/app/__init__.py
+++ /dev/null
@@ -1 +0,0 @@
-"""Main module for the app."""
diff --git a/config_skeleton/__init__.py b/config_skeleton/__init__.py
new file mode 100644
index 0000000..74c7c22
--- /dev/null
+++ b/config_skeleton/__init__.py
@@ -0,0 +1,11 @@
+"""Main module for the app."""
+from .exceptions import InvalidKeyError, InvalidValueError, MissingKeyError
+from .skeleton import merge, merge_with_skeleton
+
+__all__ = [
+    "InvalidKeyError",
+    "InvalidValueError",
+    "MissingKeyError",
+    "merge",
+    "merge_with_skeleton",
+]
diff --git a/app/exceptions.py b/config_skeleton/exceptions.py
similarity index 97%
rename from app/exceptions.py
rename to config_skeleton/exceptions.py
index 34ff26e..af3c97c 100644
--- a/app/exceptions.py
+++ b/config_skeleton/exceptions.py
@@ -48,8 +48,7 @@ class InvalidValueError(Exception):
             actual: name of the actual type
         """
         self.message = (
-            f"Invalid value for key {key}: expected {expected}, "
-            f"got {actual}"
+            f"Invalid value for key {key}: expected {expected}, " f"got {actual}"
         )
 
         super().__init__()
diff --git a/app/skeleton.py b/config_skeleton/skeleton.py
similarity index 95%
rename from app/skeleton.py
rename to config_skeleton/skeleton.py
index e591a5b..2c9cd20 100644
--- a/app/skeleton.py
+++ b/config_skeleton/skeleton.py
@@ -37,9 +37,7 @@ def merge(*dicts: [Dict]) -> Dict:
         if type(value) == dict:
             # Merge the two sub-dictionaries
             output[key] = (
-                merge(output[key], value)
-                if type(output.get(key)) == dict
-                else value
+                merge(output[key], value) if type(output.get(key)) == dict else value
             )
 
         else:
diff --git a/pyproject.toml b/pyproject.toml
index a973db2..b63d6d3 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -2,9 +2,6 @@
 requires = ["setuptools", "wheel"]
 build-backend = "setuptools.build_meta"
 
-[tool.black]
-line-length = 79
-
 [tool.isort]
 profile = "black"
 multi_line_output = 3
diff --git a/setup.cfg b/setup.cfg
index 3748eb5..e687c30 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -3,7 +3,7 @@ name = config-skeleton
 version = 0.0.1
 
 [options]
-packages = app
+packages = config_skeleton
 install_requires =
 
 [options.extras_require]
diff --git a/tests/test_dict_merge.py b/tests/test_dict_merge.py
index 2da81bf..ea7f5de 100644
--- a/tests/test_dict_merge.py
+++ b/tests/test_dict_merge.py
@@ -1,5 +1,5 @@
 """Tests for the skeleton module."""
-from app.skeleton import merge
+from config_skeleton import merge
 
 
 def test_merge_empty():
diff --git a/tests/test_skeleton.py b/tests/test_skeleton.py
index a0d0128..e6f41d8 100644
--- a/tests/test_skeleton.py
+++ b/tests/test_skeleton.py
@@ -1,8 +1,7 @@
 """Tests wether the skeleton merge works."""
 import pytest
 
-from app.exceptions import InvalidKeyError, MissingKeyError
-from app.skeleton import merge_with_skeleton
+from config_skeleton import InvalidKeyError, MissingKeyError, merge_with_skeleton
 
 
 def test_single_invalid_key():