diff --git a/README.md b/README.md
index 1c2ae31..426ac94 100644
--- a/README.md
+++ b/README.md
@@ -13,11 +13,17 @@ python -m venv .venv
 source .venv/bin/activate
 ``` 
 
-Build and install executable:
+Build executable:
 
 ```bash
-python setup.py build
-python setup.py install
+pip install --upgrade build
+python -m build
+```
+
+Install the executable:
+
+```bash
+pip install .
 ```
 
 See where it is installed:
@@ -27,6 +33,13 @@ which invoice
 
 ## usage
 
+```bash
+invoice -h
+
+
+
+```
+
 There are two yaml files describing your invoice:
 
 - `invoice.yaml` contains the invoice data
diff --git a/setup.py b/setup.py
deleted file mode 100644
index 84a2ac4..0000000
--- a/setup.py
+++ /dev/null
@@ -1,36 +0,0 @@
-from setuptools import setup, find_packages
-
-setup(
-    name='simple-invoice-generator',
-    version='0.1.0',
-    description='Simple invoice generator for freelancers and small businesses',
-    long_description=open('README.md').read(),
-    long_description_content_type='text/markdown',
-    author='Torsten Ueberschar',
-    author_email='tu@uesome.de',
-    url='https://git.uesome.de/torsten/simple-invoice-generator',
-    packages=find_packages('src'),
-    package_dir={'': 'src'},
-    install_requires=[
-        'PyYAML',
-        'Jinja2',
-        'xhtml2pdf',
-        'Markdown',
-    ],
-    extras_require={
-        'dev': ['pytest', 'coverage'],
-        # Extra dependencies for development and testing
-    },
-    classifiers=[
-        'Development Status :: 3 - Alpha',
-        'Intended Audience :: Developers, Freelancers',
-        'License :: OSI Approved :: MIT License',
-        'Programming Language :: Python :: 3.10',
-        # Add more classifiers as needed
-    ],
-    entry_points={
-        'console_scripts': [
-            'invoice = main:main',
-        ]
-    }
-)
diff --git a/src/main.py b/src/main.py
index c06e56c..d79c9fa 100644
--- a/src/main.py
+++ b/src/main.py
@@ -52,11 +52,12 @@ def main():
     print('Simple invoice generator for freelancers and small businesses by Torsten Ueberschar')
     print()
     parser = argparse.ArgumentParser(description='Read invoice and envelope data from yaml file')
-    parser.add_argument('-b', '--base', type=str, required=False, default=f'{cwd}', help='base directory for invoice and envelope files')
+    parser.add_argument('-b', '--base', type=str, required=False, default=cwd,
+                        help='base directory for invoice and envelope files (default: (current working directory) %(default)s)')
     parser.add_argument('-e', '--envelope', type=str, required=False, default='envelope.yaml',
-                        help='Envelope file name')
+                        help='Envelope file name (default: %(default)s)')
     parser.add_argument('-t', '--template', type=str, required=False, default='templates',
-                        help='directory for template files')
+                        help='directory for template files (default: %(default)s)')
     parser.add_argument('-i', '--invoice', type=str, required=True, help='Invoice file name')
 
     args = parser.parse_args()