diff --git a/.editorconfig b/.editorconfig
index e3481199..0ae391f4 100644
--- a/.editorconfig
+++ b/.editorconfig
@@ -9,9 +9,6 @@ insert_final_newline = true
 [Makefile]
 indent_style = tab
 
-[Makefile]
-indent_style = tab
-
 [*.{py,toml}]
 indent_size = 4
 
diff --git a/.github/workflows/cd.yml b/.github/workflows/cd.yml
index 8115518e..a23ea0e7 100644
--- a/.github/workflows/cd.yml
+++ b/.github/workflows/cd.yml
@@ -1,11 +1,12 @@
-# cspell:ignore noreply pypa sdist
+# cspell:ignore noreply prereleased pypa
 
 name: CD
 
 on:
-  create:
-    tags:
-      - "[0-9]+.[0-9]+.[0-9]+*"
+  release:
+    types:
+      - prereleased
+      - released
 
 jobs:
   documentation:
@@ -45,10 +46,10 @@ jobs:
       - name: Install dependencies
         run: |
           python -m pip install --upgrade pip
-          pip install .[ci]
+          pip install .[precommit]
           sudo npm install -g cspell markdownlint-cli pyright
       - name: Perform style checks
-        run: tox -e sty
+        run: pre-commit run -a
       - name: Check spelling
         run: cspell $(git ls-files)
       - name: Lint Markdown files
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index d089da2f..290d8bdc 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -46,10 +46,10 @@ jobs:
       - name: Install dependencies
         run: |
           python -m pip install --upgrade pip
-          pip install .[ci]
+          pip install .[precommit]
           sudo npm install -g cspell markdownlint-cli pyright
       - name: Perform style checks
-        run: tox -e sty
+        run: pre-commit run -a
       - name: Check spelling
         run: cspell $(git ls-files)
       - name: Lint Markdown files
diff --git a/.gitignore b/.gitignore
index 524b7b92..c30a66c1 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,14 @@
+# Output files
+*.gv
+*.json
+*.npy
+*.pdf
+*.png
+*.svg
+*.xml
+*.yaml
+*.yml
+
 # Build files
 *.egg-info/
 *build/
@@ -26,3 +37,16 @@ pyvenv*/
 # Settings
 .idea/
 **.code-workspace
+
+# Exceptions
+!.github/*.yml
+!.github/*/*.yml
+!.gitpod.yml
+!.markdownlint.json
+!.pre-commit-config.yaml
+!.readthedocs.yml
+!.vscode/*.json
+!codecov.yml
+!cspell.json
+!environment.yml
+!pyrightconfig.json
diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 448ea360..86634721 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -9,7 +9,6 @@ repos:
     hooks:
       - id: check-ast
       - id: check-case-conflict
-      - id: check-docstring-first
       - id: check-json
       - id: check-merge-conflict
       - id: check-toml
@@ -25,8 +24,8 @@ repos:
       - id: mixed-line-ending
       - id: trailing-whitespace
 
-  - repo: https://github.com/prettier/prettier
-    rev: 2.1.2
+  - repo: https://github.com/pre-commit/mirrors-prettier
+    rev: v2.2.0
     hooks:
       - id: prettier
         language_version: 12.18.2 # prettier does not specify node correctly
diff --git a/.pylintrc b/.pylintrc
index a0ef315b..5bca367a 100644
--- a/.pylintrc
+++ b/.pylintrc
@@ -21,5 +21,11 @@ disable=
 ignore=
     conf.py
 
+[DESIGN]
+# Minimum number of public methods for a class (see R0903). Default is 2.
+# We decrease this to 0, since some rules are "empty" but get decorated.
+# Note that some interface classes also just have a single method
+min-public-methods=0
+
 [SIMILARITIES]
 ignore-imports=yes # https://stackoverflow.com/a/30007053
diff --git a/.vscode/settings.json b/.vscode/settings.json
index ad0de1aa..5da95153 100644
--- a/.vscode/settings.json
+++ b/.vscode/settings.json
@@ -51,11 +51,17 @@
   "python.linting.pylintEnabled": true,
   "python.linting.pylintUseMinimalCheckers": false,
   "python.testing.nosetestsEnabled": false,
+  "python.testing.pytestArgs": ["--color=no", "--no-cov"],
   "python.testing.pytestEnabled": false,
   "python.testing.unittestEnabled": false,
   "restructuredtext.builtDocumentationPath": "${workspaceFolder}/docs/_build/html",
-  "restructuredtext.confPath": "${workspaceFolder}/doc",
+  "restructuredtext.confPath": "${workspaceFolder}/docs",
   "rewrap.wrappingColumn": 79,
+  "search.exclude": {
+    "**/tests/**/__init__.py": true,
+    "docs/tox.ini": true,
+    "tests/tox.ini": true
+  },
   "telemetry.enableCrashReporter": false,
   "telemetry.enableTelemetry": false
 }
diff --git a/README.md b/README.md
index 3092f6a6..9c82f343 100644
--- a/README.md
+++ b/README.md
@@ -12,3 +12,7 @@
 
 This repository contains the source code for the
 [pwa.rtfd.io](https://pwa.readthedocs.io) pages.
+
+## Contribute
+
+See [`CONTRIBUTING.md`](./CONTRIBUTING.md)
diff --git a/cspell.json b/cspell.json
index 611dd479..42f419fd 100644
--- a/cspell.json
+++ b/cspell.json
@@ -28,6 +28,7 @@
         ".vscode/*",
         ".vscode/.gitignore",
         "Makefile",
+        "codecov.yml",
         "cspell.json",
         "docs/_templates/*",
         "docs/conf.py",
@@ -99,6 +100,7 @@
         "oneline",
         "pandoc",
         "pawian",
+        "precommit",
         "propto",
         "pycompwa",
         "pydocstyle",
diff --git a/docs/.gitignore b/docs/.gitignore
index 0209b04a..b6c50e96 100644
--- a/docs/.gitignore
+++ b/docs/.gitignore
@@ -2,4 +2,3 @@
 *.inv
 *build/
 api/
-pwa_pages.svg
diff --git a/docs/_static/favicon.ico b/docs/_static/favicon.ico
new file mode 100644
index 00000000..bfd192b1
Binary files /dev/null and b/docs/_static/favicon.ico differ
diff --git a/docs/api.rst b/docs/api.rst
deleted file mode 100644
index 4b3ede42..00000000
--- a/docs/api.rst
+++ /dev/null
@@ -1,14 +0,0 @@
-API
-===
-
-The PWA pages contains a few functions that can be used in the Jupyter
-notebooks that underlie these pages.
-
-.. toctree::
-
-  api/pwa_pages
-
-.. seealso::
-
-  * :ref:`modindex`
-  * :ref:`genindex`
diff --git a/docs/conf.py b/docs/conf.py
index 657d5b21..573a4398 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -18,11 +18,14 @@
 
 # -- Project information -----------------------------------------------------
 project = "PWA Software Pages"
+package = "pwa_pages"
+repo_name = "PWA-pages"
 copyright = "2020, ComPWA"
 author = "Common Partial Wave Analysis"
 
-__release = get_distribution("pwa_pages").version
-version = ".".join(__release.split(".")[:3])
+if os.path.exists(f"../src/{package}/version.py"):
+    __release = get_distribution(package).version
+    version = ".".join(__release.split(".")[:3])
 
 # -- Generate API skeleton ----------------------------------------------------
 shutil.rmtree("api", ignore_errors=True)
@@ -30,7 +33,7 @@
     " ".join(
         [
             "sphinx-apidoc",
-            "../src/pwa_pages/",
+            f"../src/{package}/",
             "-o api/",
             "--force",
             "--no-toc",
@@ -53,7 +56,7 @@
 # The master toctree document.
 master_doc = "index"
 modindex_common_prefix = [
-    "pwa_pages.",
+    f"{package}.",
 ]
 
 extensions = [
@@ -94,17 +97,18 @@
     ),
 }
 html_copy_source = True  # needed for download notebook button
+html_favicon = "_static/favicon.ico"
 html_show_copyright = False
 html_show_sourcelink = False
 html_show_sphinx = False
 html_sourcelink_suffix = ""
 html_theme = "sphinx_book_theme"
 html_theme_options = {
-    "repository_url": "https://github.com/ComPWA/PWA-pages",
+    "repository_url": f"https://github.com/ComPWA/{repo_name}",
     "repository_branch": "stable",
     "path_to_docs": "docs",
-    "use_edit_page_button": True,
     "use_download_button": True,
+    "use_edit_page_button": True,
     "use_issues_button": True,
     "use_repository_button": True,
     "launch_buttons": {
@@ -125,7 +129,6 @@
 default_role = "py:obj"
 primary_domain = "py"
 nitpicky = True  # warn if cross-references are missing
-nitpick_ignore = []
 
 # Intersphinx settings
 intersphinx_mapping = {
@@ -196,7 +199,8 @@
             [
                 "HOME=.",  # in case of calling through tox
                 "pydeps",
-                "../src/pwa_pages",
+                f"../src/{package}",
+                "-o module_structure.svg",
                 "--exclude *._*",  # hide private modules
                 "--max-bacon=2",  # hide external dependency submodules
                 "--noshow",
@@ -204,9 +208,9 @@
         ),
         shell=True,
     )
-    if os.path.exists("pwa_pages.svg"):
-        with open("api/pwa_pages.rst", "a") as stream:
-            stream.write("\n.. image:: /pwa_pages.svg")
+    if os.path.exists("module_structure.svg"):
+        with open(f"api/{package}.rst", "a") as stream:
+            stream.write("\n.. image:: /module_structure.svg")
 
 # Add roles to simplify external linnks
 def setup(app: Sphinx):
diff --git a/docs/index.md b/docs/index.md
index 0cef6021..2d1a060c 100644
--- a/docs/index.md
+++ b/docs/index.md
@@ -33,6 +33,8 @@ the available software tools that are relevant to PWA software development.
 Finally, the [develop page](./develop.md) formulates some conventions and tools
 that are used by {ref}`affiliated software packages <software:Sub-projects>`.
 
+## Table of Contents
+
 ```{toctree}
 ---
 maxdepth: 2
@@ -41,16 +43,12 @@ theory
 analysis
 software
 develop
+API <api/pwa_pages>
 ```
 
 - {ref}`Python API <modindex>`
-
-```{toctree}
----
-hidden:
----
-api
-```
+- {ref}`General Index <genindex>`
+- {ref}`Search <search>`
 
 ```{toctree}
 ---
diff --git a/pyproject.toml b/pyproject.toml
index 10639bb9..52a0e183 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -6,7 +6,7 @@ requires = [
 ]
 
 [tool.setuptools_scm]
-write_to = "pwa_pages/version.py"
+write_to = "src/pwa_pages/version.py"
 
 [tool.black]
 line-length = 79
diff --git a/pyrightconfig.json b/pyrightconfig.json
index 0036b13f..bbad5e89 100644
--- a/pyrightconfig.json
+++ b/pyrightconfig.json
@@ -1,5 +1,5 @@
 {
-  "exclude": [".git", ".tox"],
+  "exclude": [".git", ".tox", "docs/_build"],
   "include": ["docs", "src", "tests"],
   "reportGeneralTypeIssues": false,
   "reportUnboundVariable": false,
diff --git a/setup.cfg b/setup.cfg
index ff513e94..5b77ef88 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -1,7 +1,11 @@
 [metadata]
 name = PWA-pages
+author = Common Partial Wave Analysis
+author_email = compwa-admin@ep1.rub.de
+maintainer_email = compwa-admin@ep1.rub.de
 long_description = file: README.md
 long_description_content_type = text/markdown
+# URLS are shown in reverse order on PyPI
 project_urls =
     Tracker = https://github.com/ComPWA/PWA-pages/issues
     Changelog = https://github.com/ComPWA/PWA-pages/releases
@@ -17,7 +21,7 @@ keywords =
     particles
     physics
 classifiers =
-    Development Status :: 1 - Planning
+    Development Status :: 2 - Pre-Alpha
     Intended Audience :: Developers
     Intended Audience :: Education
     Intended Audience :: Science/Research
@@ -52,13 +56,13 @@ pwa_pages =
 
 [options.extras_require]
 doc =
-    graphviz==0.14.2
+    graphviz==0.15
     ipywidgets==7.5.1
     jupyter==1.0.0
     myst-nb==0.10.1
     pybtex==0.23.0
     pydeps==1.9.11
-    Sphinx==3.2.1
+    Sphinx==3.3.1
     sphinx-book-theme==0.0.39
     sphinx-copybutton==0.3.1
     sphinx-math-dollar==1.2
@@ -68,36 +72,40 @@ doc =
     sphinxcontrib-bibtex==1.0.0
 format =
     black==20.8b1
-    isort==5.6.1
-lint =
-    data-science-types==0.2.19
+    isort==5.6.4
+    nbstripout==0.3.9
+lint-doc =
     doc8==0.8.1
-    flake8==3.8.3 # >=3 for per-file-ignores
+    rstcheck==3.3.1
+lint-py =
+    flake8==3.8.4
     flake8-blind-except==0.1.1
     flake8-bugbear==20.1.4
     flake8-builtins==1.5.3
-    flake8-rst-docstrings==0.0.13
-    mypy==0.782
-    nbstripout==0.3.8
+    flake8-rst-docstrings==0.0.14
+    mypy==0.790
     pep8-naming==0.11.1
     pydocstyle==5.1.1
     pylint==2.6.0
-    rstcheck==3.3.1
-ci =
+lint =
+    %(lint-doc)s
+    %(lint-py)s
+precommit =
     %(format)s
     %(lint)s
     pre-commit==2.8.2
-    tox==3.20.0
+tox =
+    %(precommit)s
+    sphinx-autobuild==2020.9.1
+    tox==3.20.1
 tools =
-    jupyterlab==2.2.4
+    jupyterlab==2.2.9
     jupyterlab_code_formatter==1.3.6
-    jupyter_nbextensions_configurator==0.4.1
     labels==20.1.0
-    sphinx-autobuild==2020.9.1
 dev =
-    %(ci)s
     %(doc)s
     %(tools)s
+    %(tox)s
 
 [doc8]
 extension=.inc
@@ -114,10 +122,11 @@ files =
     **/*.py,
     **/*.pyi,
 
-[mypy-conf.*]
-ignore = True
-
 ; External packages that miss stubs or type hints
+[mypy-matplotlib.*]
+ignore_missing_imports = True
+[mypy-numpy.*]
+ignore_missing_imports = True
 [mypy-setuptools.*]
 ignore_missing_imports = True
 
diff --git a/tox.ini b/tox.ini
index 9a1cf275..f13f44d2 100644
--- a/tox.ini
+++ b/tox.ini
@@ -16,15 +16,6 @@ whitelist_externals =
 commands =
     make html
 
-[testenv:linkcheck]
-description =
-    Check external links in the documentation (requires internet connection)
-changedir = docs
-whitelist_externals =
-    make
-commands =
-    make ignore-warnings=1 linkcheck  # for margin directive
-
 [testenv:doc-live]
 description =
     Set up a server to preview changes to the HTML pages live
@@ -34,11 +25,22 @@ commands =
     sphinx-autobuild \
         --watch docs \
         --watch src \
-        --re-ignore docs/api/.* \
+        --re-ignore docs/.*\.inv \
         --re-ignore docs/_build/.* \
+        --re-ignore docs/api/.* \
         --open-browser \
         docs/ docs/_build/html
 
+
+[testenv:linkcheck]
+description =
+    Check external links in the documentation (requires internet connection)
+changedir = docs
+whitelist_externals =
+    make
+commands =
+    make ignore-warnings=1 linkcheck  # for margin directive
+
 [testenv:sty]
 description =
     Perform all linting, formatting, and spelling checks
@@ -55,7 +57,8 @@ commands =
     - bash -ec "markdownlint . --ignore docs/_build"
 
 [flake8]
-application-import-names = pwa_pages
+application-import-names =
+    pwa_pages
 filename =
     ./src/*.py
 exclude =