add public docs with sphinx

Makefile

@@ -11,6 +11,15 @@ $(VENV_DIR)/bin/activate: pyproject.toml
 	$(VENV_ACTIVATE); pip install -e ".[dev]"
 	touch $(VENV_DIR)/bin/activate
 
+$(VENV_DIR)/.docs-install: pyproject.toml $(VENV_DIR)/bin/activate
+	$(VENV_ACTIVATE); pip install -e .[docs]
+	touch $(VENV_DIR)/.docs-install
+
+install-docs: $(VENV_DIR)/.docs-install
+
+docs: install-docs
+	$(VENV_ACTIVATE); cd docs && make html
+
 clean:
 	rm -rf build/
 	rm -rf .eggs/

docs/Makefile

@@ -0,0 +1,20 @@
+# Minimal makefile for Sphinx documentation
+#
+
+# You can set these variables from the command line, and also
+# from the environment for the first two.
+SPHINXOPTS    ?=
+SPHINXBUILD   ?= sphinx-build
+SOURCEDIR     = .
+BUILDDIR      = _build
+
+# Put it first so that "make" without argument is like "make help".
+help:
+	@$(SPHINXBUILD) -M help "$(SOURCEDIR)" "$(BUILDDIR)" $(SPHINXOPTS) $(O)
+
+.PHONY: help Makefile
+
+# Catch-all target: route all unknown targets to Sphinx using the new
+# "make mode" option.  $(O) is meant as a shortcut for $(SPHINXOPTS).
+%: Makefile
+	@$(SPHINXBUILD) -M $@ "$(SOURCEDIR)" "$(BUILDDIR)" $(SPHINXOPTS) $(O)

docs/conf.py

@@ -0,0 +1,35 @@
+# Configuration file for the Sphinx documentation builder.
+#
+# For the full list of built-in configuration values, see the documentation:
+# https://www.sphinx-doc.org/en/master/usage/configuration.html
+
+# -- Project information -----------------------------------------------------
+# https://www.sphinx-doc.org/en/master/usage/configuration.html#project-information
+
+project = "Plux"
+copyright = "2026, LocalStack"
+author = "Thomas Rausch"
+release = "1.14.0"
+
+# -- General configuration ---------------------------------------------------
+# https://www.sphinx-doc.org/en/master/usage/configuration.html#general-configuration
+
+extensions = ["myst_parser"]
+
+templates_path = ["_templates"]
+exclude_patterns = ["_build", "Thumbs.db", ".DS_Store"]
+
+
+# -- Options for HTML output -------------------------------------------------
+# https://www.sphinx-doc.org/en/master/usage/configuration.html#options-for-html-output
+
+html_theme = "furo"
+html_static_path = ["_static"]
+html_title = "Plux documentation"
+
+html_theme_options = {
+    "top_of_page_buttons": ["view", "edit"],
+    "source_repository": "https://github.com/localstack/plux/",
+    "source_branch": "main",
+    "source_directory": "docs/",
+}

docs/index.rst

@@ -0,0 +1,41 @@
+.. Plux documentation master file, created by
+   sphinx-quickstart on Fri Jan 23 18:46:08 2026.
+   You can adapt this file completely to your liking, but it should at least
+   contain the root `toctree` directive.
+
+Plux - Dynamic Code Loading Framework
+=====================================
+
+Plux is the dynamic code loading framework used in `LocalStack <https://github.com/localstack/localstack>`_. It builds a higher-level plugin mechanism around `Python's entry point mechanism <https://packaging.python.org/specifications/entry-points/>`_.
+
+Plux provides tools to load plugins from entry points at run time, and to discover entry points from plugins at build time (so you don't have to declare entry points statically in your ``setup.cfg`` or ``pyproject.toml``).
+
+.. image:: plux-architecture.png
+   :alt: Plux Architecture
+   :align: center
+
+.. toctree::
+   :maxdepth: 1
+   :caption: User Guide
+
+   user_guide/quickstart
+   user_guide/defining_loading_plugins
+   user_guide/plugin_manager
+   user_guide/filters
+   user_guide/lifecycle_listener
+   user_guide/build_integration
+   user_guide/cli
+
+.. toctree::
+   :maxdepth: 1
+   :caption: Reference
+
+   reference/build_discovery
+   reference/runtime_discovery
+   reference/setuptools_integration
+
+.. toctree::
+   :maxdepth: 1
+   :caption: Tutorials
+
+   tutorials/index

docs/make.bat

@@ -0,0 +1,35 @@
+@ECHO OFF
+
+pushd %~dp0
+
+REM Command file for Sphinx documentation
+
+if "%SPHINXBUILD%" == "" (
+	set SPHINXBUILD=sphinx-build
+)
+set SOURCEDIR=.
+set BUILDDIR=_build
+
+%SPHINXBUILD% >NUL 2>NUL
+if errorlevel 9009 (
+	echo.
+	echo.The 'sphinx-build' command was not found. Make sure you have Sphinx
+	echo.installed, then set the SPHINXBUILD environment variable to point
+	echo.to the full path of the 'sphinx-build' executable. Alternatively you
+	echo.may add the Sphinx directory to PATH.
+	echo.
+	echo.If you don't have Sphinx installed, grab it from
+	echo.https://www.sphinx-doc.org/
+	exit /b 1
+)
+
+if "%1" == "" goto help
+
+%SPHINXBUILD% -M %1 %SOURCEDIR% %BUILDDIR% %SPHINXOPTS% %O%
+goto end
+
+:help
+%SPHINXBUILD% -M help %SOURCEDIR% %BUILDDIR% %SPHINXOPTS% %O%
+
+:end
+popd