..
   Copyright 2026 John Harwell, All rights reserved.

   SPDX-License-Identifier:  MIT

.. _arch:

============
Architecture
============

These pages explain how SIERRA works internally. They are most useful
when writing plugins or contributing to the core, but also help explain
why SIERRA behaves the way it does in edge cases.

.. toctree::
   :maxdepth: 2

   plugin-system
   execution-model
   deep-dive