Exercise: Build BoilingPot/DataLogger C++ Project
=================================================

.. topic:: Github repo

   https://codeberg.org/jfasch/2026-08-19-exercise-1

Clone the exercise from
https://codeberg.org/jfasch/2026-08-19-exercise-1. This creates a
subdirectory ``2026-08-19-exercise-1`` in the current working
directory (mine is ``~/My-Projects/``).

.. code-block:: console

   $ cd ~/My-Projects
   $ git clone https://codeberg.org/jfasch/2026-08-19-exercise-1
   ...
   $ ls -l
   drwxr-xr-x. 1 jfasch jfasch  60 Aug 14 17:49 2026-08-19-exercise-1

Examine the project structure:

* ``firmware/`` apparently is the place for programs; there are two:
  ``boiling-pot.cpp`` and ``data-logger.cpp``.
* In ``toolcase/``, there are three distinct directories containing
  further code. The structure suggests that the contents of each of
  these directories will make it into a library.

Add a CMake build description to this project. Most importantly,
understand what are the *nodes* (remember: ``add_executable()`` and
``add_library()`` define nodes/targets), and what are the
*edges/dependencies* between the nodes (remember:
``target_link_libraries()`` is used to draw edges).