diff --git a/LICENSE b/LICENSE
index e69de29..29ea8ca 100644
--- a/LICENSE
+++ b/LICENSE
@@ -0,0 +1,19 @@
+Copyright (c) 2023 Kumi Mitterer <trackingmore-api-tool@kumi.email>
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
\ No newline at end of file
diff --git a/pyproject.toml b/pyproject.toml
new file mode 100644
index 0000000..b81ccc2
--- /dev/null
+++ b/pyproject.toml
@@ -0,0 +1,26 @@
+[build-system]
+requires = ["hatchling"]
+build-backend = "hatchling.build"
+
+[project]
+name = "trackingmore"
+version = "0.1.0"
+authors = [
+  { name="Kumi Mitterer", email="trackingmore-api-tool@kumi.email" },
+]
+description = "API wrapper for the TrackingMore API (v3)"
+readme = "README.md"
+license = { file="LICENSE" }
+requires-python = ">=3.8"
+classifiers = [
+    "Programming Language :: Python :: 3",
+    "License :: OSI Approved :: MIT License",
+    "Operating System :: OS Independent",
+]
+
+[project.urls]
+"Homepage" = "https://kumig.it/kumitterer/trackingmore-api-tool"
+"Bug Tracker" = "https://kumig.it/kumitterer/trackingmore-api-tool/issues"
+
+[project.scripts]
+trackingmore = "trackingmore.tracker:main"
diff --git a/src/trackingmore/__init__.py b/src/trackingmore/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/src/trackingmore/classes/__init__.py b/src/trackingmore/classes/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/classes/api.py b/src/trackingmore/classes/api.py
similarity index 100%
rename from classes/api.py
rename to src/trackingmore/classes/api.py
diff --git a/tracker.py b/src/trackingmore/tracker.py
similarity index 80%
rename from tracker.py
rename to src/trackingmore/tracker.py
index 8a3132e..c3d550d 100644
--- a/tracker.py
+++ b/src/trackingmore/tracker.py
@@ -1,12 +1,9 @@
-from classes.api import TrackingMore
+from trackingmore.classes.api import TrackingMore
 
 from configparser import ConfigParser
 from argparse import ArgumentParser
 
-if __name__ == "__main__":
-    config = ConfigParser()
-    config.read('settings.ini')
-
+def main():
     parser = ArgumentParser()
 
     parser.add_argument('tracking_number', nargs="?", help='Tracking number to track')
@@ -14,9 +11,13 @@ if __name__ == "__main__":
     parser.add_argument('--detect-carrier', '-d', action='store_true', help='Detect and output carrier from tracking number')
     parser.add_argument('--list-carriers', '-l', action='store_true', help='List carriers')
     parser.add_argument('--key', '-k', help='TrackingMore API Key (overrides config)')
+    parser.add_argument('--config-file', '-f', help='Config file (default: settings.ini in working directory)', default='settings.ini')
 
     args = parser.parse_args()
 
+    config = ConfigParser()
+    config.read(args.config_file)
+
     if (args.tracking_number or args.carrier) and args.list_carriers:
         print("Cannot specify both tracking number and --list-carriers/-l")
         exit(1)
@@ -36,3 +37,9 @@ if __name__ == "__main__":
 
         else:
             print(api.track_shipment(args.tracking_number, args.carrier))
+
+    else:
+        print("No tracking number specified - use --help for usage")
+
+if __name__ == '__main__':
+    main()
\ No newline at end of file