Quickstart
==========

Install the native package (Python 3.14)::

   pip install costa-core

Import and greet::

   from costa import hello
   print(hello("world"))  # Hello, world!

For local development, build and editable-install from ``costa_py/`` with maturin
(see the repository README).

Try it in the browser
---------------------

The REPL below runs **costa** in your browser via Pyodide and the wasm wheel.
Wait for **Ready — click Run**, edit the code if you like, then click **Run**.

.. costa-repl::

   from costa import hello
   print(hello("world"))  # Hello, world!