Overview
========

Goals
-----

- Learn how basic TCP sockets behave.
- Understand how TLS wraps a TCP connection.
- See simple HTTP and SSH protocol examples.
- Explore native extensions in Python with ctypes and pybind11.

Repository layout
-----------------

.. code-block:: text

   src/
     new_year_2026/
       tcp_server.py
       tcp_client.py
       tls_echo_server.py
       tls_echo_client.py
       mini_tls_server.py
       get_or_post.py
       ssh_minimal_client.py
       cert.pem
       key.pem
       examples/
         ctypes_shared/
         extension_pkg/
   docs/
   .github/workflows/

Design principles
-----------------

- Keep demos small and readable.
- Prefer standard library APIs where possible.
- Show practical TLS and native extension usage without heavy frameworks.