diff --git a/.python-version b/.python-version
new file mode 100644
index 0000000..24ee5b1
--- /dev/null
+++ b/.python-version
@@ -0,0 +1 @@
+3.13
diff --git a/.vscode/settings.json b/.vscode/settings.json
new file mode 100644
index 0000000..d1793fe
--- /dev/null
+++ b/.vscode/settings.json
@@ -0,0 +1,14 @@
+{
+    "cSpell.words": [
+        "typer"
+    ],
+    "python.testing.unittestArgs": [
+        "-v",
+        "-s",
+        "./tests",
+        "-p",
+        "test_*.py"
+    ],
+    "python.testing.pytestEnabled": false,
+    "python.testing.unittestEnabled": true
+}
\ No newline at end of file
diff --git a/pyproject.toml b/pyproject.toml
new file mode 100644
index 0000000..76c7804
--- /dev/null
+++ b/pyproject.toml
@@ -0,0 +1,24 @@
+[build-system]
+requires = ["setuptools >= 61.0"]
+build-backend = "setuptools.build_meta"
+
+[project]
+name = "python101"
+version = "0.1.0"
+description = "A dynamic learning environment and development framework for Python, leveraging Typer for an interactive command-line interface."
+readme = "README.md"
+requires-python = ">=3.13"
+dependencies = [
+    "loadenv>=0.1.1",
+    "typer>=0.26.7",
+]
+[tool.uv]
+package = true
+
+[project.optional-dependencies]
+build = [
+    "setuptools",
+]
+
+[project.scripts]
+learn = "python101.main:run"
diff --git a/src/python101/__init__.py b/src/python101/__init__.py
new file mode 100644
index 0000000..161dc7b
--- /dev/null
+++ b/src/python101/__init__.py
@@ -0,0 +1,21 @@
+# MIT License
+#
+# Copyright (c) 2026 Irene Hofstetter
+#
+# 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.
diff --git a/src/python101/__main__.py b/src/python101/__main__.py
new file mode 100644
index 0000000..95154a7
--- /dev/null
+++ b/src/python101/__main__.py
@@ -0,0 +1,28 @@
+# MIT License
+#
+# Copyright (c) 2026 Irene Hofstetter
+#
+# 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.
+
+"""Alternative entry point."""
+
+from .main import run
+
+if __name__ == "__main__":
+    run()
diff --git a/src/python101/commands/__init__.py b/src/python101/commands/__init__.py
new file mode 100644
index 0000000..452b2bf
--- /dev/null
+++ b/src/python101/commands/__init__.py
@@ -0,0 +1,31 @@
+# MIT License
+#
+# Copyright (c) 2026 Irene Hofstetter
+#
+# 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.
+
+"""Commands package initialization."""
+
+from .ch01 import ch01
+from .ch02 import ch02
+
+__all__ = [
+    "ch01",
+    "ch02",
+]
diff --git a/src/python101/commands/ch01.py b/src/python101/commands/ch01.py
new file mode 100644
index 0000000..c7d46aa
--- /dev/null
+++ b/src/python101/commands/ch01.py
@@ -0,0 +1,33 @@
+# MIT License
+#
+# Copyright (c) 2026 Irene Hofstetter
+#
+# 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.
+
+"""Chapter 01: Getting Started."""
+
+import typer
+
+app = typer.Typer(help="Chapter 1: Getting Started")
+
+
+@app.command()
+def ch01():
+    """Chapter 01 entry point."""
+    print("Welcome to Chapter 1!")
diff --git a/src/python101/commands/ch02.py b/src/python101/commands/ch02.py
new file mode 100644
index 0000000..e8c8ff9
--- /dev/null
+++ b/src/python101/commands/ch02.py
@@ -0,0 +1,33 @@
+# MIT License
+#
+# Copyright (c) 2026 Irene Hofstetter
+#
+# 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.
+
+"""Chapter 02: Intermediate Python."""
+
+import typer
+
+app = typer.Typer(help="Chapter 2: Intermediate Python")
+
+
+@app.command()
+def ch02():
+    """Chapter 02 entry point."""
+    print("Welcome to Chapter 2!")
diff --git a/src/python101/main.py b/src/python101/main.py
new file mode 100644
index 0000000..ab7bdcd
--- /dev/null
+++ b/src/python101/main.py
@@ -0,0 +1,53 @@
+# MIT License
+#
+# Copyright (c) 2026 Irene Hofstetter
+#
+# 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.
+
+"""Main entry point."""
+
+import typer
+
+from .commands import ch01
+from .commands import ch02
+
+app = typer.Typer(
+    name="python101",
+    help="A dynamic learning environment and development framework for Python, leveraging Typer for an interactive command-line interface.",
+    add_completion=False,
+)
+
+app.command(ch01)
+app.command(ch02)
+
+
+@app.callback(invoke_without_command=True)
+def main(ctx: typer.Context):
+    """Description of the function."""
+    if ctx.invoked_subcommand is None:
+        print("Hello from python101! (Main Menu)")
+
+
+def run():
+    """Run the Typer app."""
+    app()
+
+
+if __name__ == "__main__":
+    run()
diff --git a/tests/__init__.py b/tests/__init__.py
new file mode 100644
index 0000000..161dc7b
--- /dev/null
+++ b/tests/__init__.py
@@ -0,0 +1,21 @@
+# MIT License
+#
+# Copyright (c) 2026 Irene Hofstetter
+#
+# 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.
diff --git a/tests/test_main.py b/tests/test_main.py
new file mode 100644
index 0000000..6c67928
--- /dev/null
+++ b/tests/test_main.py
@@ -0,0 +1,43 @@
+# MIT License
+#
+# Copyright (c) 2026 Irene Hofstetter
+#
+# 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.
+
+"""Tests for the main module."""
+
+import unittest
+import io
+from contextlib import redirect_stdout
+from src.python101.main import main
+
+
+class TestMain(unittest.TestCase):
+    """Tests for the main function."""
+
+    def test_main(self):
+        """Test that main prints the expected message."""
+        f = io.StringIO()
+        with redirect_stdout(f):
+            main()
+        self.assertEqual(f.getvalue(), "Hello from python101!\n")
+
+
+if __name__ == "__main__":
+    unittest.main()
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new file mode 100644
index 0000000..eb3c1d0
--- /dev/null
+++ b/uv.lock
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