diff --git a/.cspell.json b/.cspell.json
index fcf6504..6203953 100644
--- a/.cspell.json
+++ b/.cspell.json
@@ -1,108 +1,108 @@
 {
-    "version": "0.2",
-    "flagWords": [
-        "analyse",
-        "colour",
-        "comparision",
-        "favour",
-        "flavour",
-        "hte",
-        "optimise",
-        "paramater",
-        "parmater",
-        "transision",
-        "transisions"
-    ],
-    "ignorePaths": [
-        "**/.cspell.json",
-        ".github/workflows",
-        ".gitignore",
-        ".pre-commit-config.yaml",
-        ".vscode/*",
-        "environment.yml",
-        "pyproject.toml",
-        "requirements*.in",
-        "requirements*.txt",
-        "tox.ini"
-    ],
-    "language": "en-US",
-    "words": [
-        "AmpForm",
-        "BESIII",
-        "Blatt",
-        "Breit",
-        "CHEP",
-        "ComPWA",
-        "Conda",
-        "façade",
-        "FDSA",
-        "helicity",
-        "IPython",
-        "lambdified",
-        "matplotlib",
-        "numba",
-        "NumPy",
-        "ODSL",
-        "QRules",
-        "SymPy",
-        "TensorWaves",
-        "unbinned",
-        "Weisskopf"
-    ],
-    "ignoreWords": [
-        "Colab",
-        "Colaboratory",
-        "Miniconda",
-        "absl",
-        "asdot",
-        "autoreload",
-        "axhline",
-        "axvline",
-        "charmness",
-        "codemirror",
-        "dotprint",
-        "elif",
-        "eqnarray",
-        "figsize",
-        "filterwarnings",
-        "functools",
-        "genfromtxt",
-        "getsource",
-        "graphviz",
-        "gridspec",
-        "histtype",
-        "iplt",
-        "ipykernel",
-        "ipympl",
-        "ipynb",
-        "ipyplot",
-        "ipywidgets",
-        "isinstance",
-        "jaxlib",
-        "kernelspec",
-        "kmatrix",
-        "lambdify",
-        "linestyle",
-        "linspace",
-        "maxsize",
-        "nbconvert",
-        "nbformat",
-        "nbmake",
-        "nrows",
-        "phsp",
-        "posify",
-        "preorder",
-        "pygments",
-        "pyplot",
-        "pytest",
-        "rtfd",
-        "sharex",
-        "startswith",
-        "symplot",
-        "timeit",
-        "traceback",
-        "xlabel",
-        "xreplace",
-        "yticks"
-    ]
+  "version": "0.2",
+  "flagWords": [
+    "analyse",
+    "colour",
+    "comparision",
+    "favour",
+    "flavour",
+    "hte",
+    "optimise",
+    "paramater",
+    "parmater",
+    "transision",
+    "transisions"
+  ],
+  "ignorePaths": [
+    "**/.cspell.json",
+    ".github/workflows",
+    ".gitignore",
+    ".pre-commit-config.yaml",
+    ".vscode/*",
+    "environment.yml",
+    "pyproject.toml",
+    "requirements*.in",
+    "requirements*.txt",
+    "tox.ini"
+  ],
+  "language": "en-US",
+  "words": [
+    "AmpForm",
+    "BESIII",
+    "Blatt",
+    "Breit",
+    "CHEP",
+    "ComPWA",
+    "Conda",
+    "façade",
+    "FDSA",
+    "helicity",
+    "IPython",
+    "lambdified",
+    "matplotlib",
+    "numba",
+    "NumPy",
+    "ODSL",
+    "QRules",
+    "SymPy",
+    "TensorWaves",
+    "unbinned",
+    "Weisskopf"
+  ],
+  "ignoreWords": [
+    "Colab",
+    "Colaboratory",
+    "Miniconda",
+    "absl",
+    "asdot",
+    "autoreload",
+    "axhline",
+    "axvline",
+    "charmness",
+    "codemirror",
+    "dotprint",
+    "elif",
+    "eqnarray",
+    "figsize",
+    "filterwarnings",
+    "functools",
+    "genfromtxt",
+    "getsource",
+    "graphviz",
+    "gridspec",
+    "histtype",
+    "iplt",
+    "ipykernel",
+    "ipympl",
+    "ipynb",
+    "ipyplot",
+    "ipywidgets",
+    "isinstance",
+    "jaxlib",
+    "kernelspec",
+    "kmatrix",
+    "lambdify",
+    "linestyle",
+    "linspace",
+    "maxsize",
+    "nbconvert",
+    "nbformat",
+    "nbmake",
+    "nrows",
+    "phsp",
+    "posify",
+    "preorder",
+    "pygments",
+    "pyplot",
+    "pytest",
+    "rtfd",
+    "sharex",
+    "startswith",
+    "symplot",
+    "timeit",
+    "traceback",
+    "xlabel",
+    "xreplace",
+    "yticks"
+  ]
 }
diff --git a/.editorconfig b/.editorconfig
index 2d5f62c..88befe6 100644
--- a/.editorconfig
+++ b/.editorconfig
@@ -2,22 +2,19 @@ root = true
 
 [*]
 end_of_line = lf
+indent_size = 2
 indent_style = space
 insert_final_newline = true
 trim_trailing_whitespace = true
 
-[Makefile]
-indent_style = tab
+[*.{ipynb,md}]
+indent_size = unset
 
 [*.{py,toml}]
 indent_size = 4
 
-[*.{json,yaml,yml}]
-indent_size = 2
-
-[*.{rst,inc}]
-indent_size = 2
+[LICENSE]
+indent_size = unset
 
-# when adding words through vscode, this is the resulting output format
-[.cspell.json]
+[setup.cfg]
 indent_size = 4
diff --git a/.github/workflows/clean-caches.yml b/.github/workflows/clean-caches.yml
new file mode 100644
index 0000000..a66c407
--- /dev/null
+++ b/.github/workflows/clean-caches.yml
@@ -0,0 +1,22 @@
+name: Clean caches
+
+on:
+  pull_request:
+    types:
+      - closed
+  workflow_dispatch:
+    inputs:
+      ref:
+        description: Clean caches for this branch name or ref
+        required: false
+        type: string
+
+jobs:
+  cleanup:
+    name: Remove caches
+    runs-on: ubuntu-22.04
+    steps:
+      - uses: ComPWA/actions/clean-caches@v1
+        with:
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          ref: ${{ inputs.ref }}
diff --git a/.github/workflows/pr-linting.yml b/.github/workflows/pr-linting.yml
new file mode 100644
index 0000000..cd3bb74
--- /dev/null
+++ b/.github/workflows/pr-linting.yml
@@ -0,0 +1,33 @@
+name: PR linting
+on:
+  pull_request:
+    types:
+      - edited
+      - labeled
+      - opened
+      - reopened
+      - synchronize
+      - unlabeled
+
+jobs:
+  check-labels:
+    name: Check labels
+    runs-on: ubuntu-22.04
+    steps:
+      - uses: docker://agilepathway/pull-request-label-checker:latest # cspell:ignore agilepathway
+        with:
+          any_of: >-
+            🐛 Bug,✨ Feature,⚙️ Enhancement,⚠️ Interface,❗ Behavior,📝 Docs,🔨 Maintenance,🖱️ DX
+          none_of: Epic,💫 Good first issue
+          repo_token: ${{ secrets.GITHUB_TOKEN }}
+
+  check-title:
+    name: Check title
+    runs-on: ubuntu-22.04
+    steps:
+      - uses: actions/checkout@v4
+      - run: npm install @compwa/commitlint-config
+      - name: Create commitlint config
+        run: |
+          echo "module.exports = {extends: ['@compwa/commitlint-config']}" > commitlint.config.js
+      - uses: JulienKode/pull-request-name-linter-action@v0.5.0 # cspell:ignore kode
diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index b803a69..b492731 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -1,6 +1,8 @@
 ci:
   autoupdate_commit_msg: "MAINT: autoupdate pre-commit hooks"
   autoupdate_schedule: quarterly
+  skip:
+    - taplo
 
 repos:
   - repo: meta
@@ -9,7 +11,7 @@ repos:
       - id: check-useless-excludes
 
   - repo: https://github.com/pre-commit/pre-commit-hooks
-    rev: v4.4.0
+    rev: v4.5.0
     hooks:
       - id: check-case-conflict
       - id: check-json
@@ -25,13 +27,44 @@ repos:
       - id: mixed-line-ending
       - id: trailing-whitespace
 
+  - repo: https://github.com/ComPWA/repo-maintenance
+    rev: 0.1.0
+    hooks:
+      - id: check-dev-files
+        args:
+          - --no-cspell-update
+          - --no-github-actions
+          - --no-gitpod
+          - --no-prettierrc
+          - --no-pypi
+          - --no-python
+          - --no-ruff
+          - --no-version-branches
+          - --repo-name=ComPWA-demo
+          - --repo-title="ComPWA demos"
+      - id: colab-toc-visible
+
+  - repo: https://github.com/nbQA-dev/nbQA
+    rev: 1.7.0
+    hooks:
+      - id: nbqa-flake8
+      - id: nbqa-isort
+      - id: nbqa-pyupgrade
+        args:
+          - --py36-plus
+
+  - repo: https://github.com/psf/black
+    rev: 23.9.1
+    hooks:
+      - id: black-jupyter
+
   - repo: https://github.com/asottile/blacken-docs
     rev: 1.16.0
     hooks:
       - id: blacken-docs
 
   - repo: https://github.com/streetsidesoftware/cspell-cli
-    rev: v7.3.0
+    rev: v7.3.1
     hooks:
       - id: cspell
 
@@ -39,16 +72,8 @@ repos:
     rev: 2.7.2
     hooks:
       - id: editorconfig-checker
-
-  - repo: https://github.com/nbQA-dev/nbQA
-    rev: 1.7.0
-    hooks:
-      - id: nbqa-black
-      - id: nbqa-flake8
-      - id: nbqa-isort
-      - id: nbqa-pyupgrade
-        args:
-          - --py36-plus
+        name: editorconfig
+        alias: ec
 
   - repo: https://github.com/kynan/nbstripout
     rev: 0.6.1
@@ -56,9 +81,11 @@ repos:
       - id: nbstripout
         args:
           - --extra-keys
-          - >
+          - |
+            cell.attachments
             cell.metadata.code_folding
             cell.metadata.id
+            cell.metadata.pycharm
             cell.metadata.user_expressions
             metadata.celltoolbar
             metadata.colab.name
@@ -77,3 +104,15 @@ repos:
     rev: v3.0.3
     hooks:
       - id: prettier
+
+  - repo: https://github.com/ComPWA/mirrors-taplo
+    rev: v0.8.1
+    hooks:
+      - id: taplo
+
+  - repo: https://github.com/pappasam/toml-sort
+    rev: v0.23.1
+    hooks:
+      - id: toml-sort
+        args:
+          - --in-place
diff --git a/.taplo.toml b/.taplo.toml
index f5caabe..0db1df7 100644
--- a/.taplo.toml
+++ b/.taplo.toml
@@ -1,16 +1,12 @@
-exclude = [
-    "**/Cargo.toml",
-    "**/Manifest.toml",
-    "**/Project.toml",
-    "labels*.toml",
-]
-
 [formatting]
+align_comments = false
 align_entries = false
+allowed_blank_lines = 1
 array_auto_collapse = false
 array_auto_expand = true
 array_trailing_comma = true
 column_width = 88
+compact_inline_tables = true
 indent_string = "    "
 reorder_arrays = true
 reorder_keys = true
diff --git a/.vscode/extensions.json b/.vscode/extensions.json
index cbc51bd..cc98fcc 100644
--- a/.vscode/extensions.json
+++ b/.vscode/extensions.json
@@ -3,13 +3,24 @@
     "eamodio.gitlens",
     "editorconfig.editorconfig",
     "esbenp.prettier-vscode",
+    "garaioag.garaio-vscode-unwanted-recommendations",
     "github.vscode-github-actions",
+    "ms-python.black-formatter",
+    "ms-python.flake8",
+    "ms-python.isort",
     "ms-python.python",
     "ms-vsliveshare.vsliveshare",
     "redhat.vscode-yaml",
+    "stkb.rewrap",
     "streetsidesoftware.code-spell-checker",
     "tamasfe.even-better-toml",
     "tyriar.sort-lines",
     "yzhang.markdown-all-in-one"
+  ],
+  "unwantedRecommendations": [
+    "bungcip.better-toml",
+    "davidanson.vscode-markdownlint",
+    "ms-python.pylint",
+    "travisillig.vscode-json-stable-stringify"
   ]
 }
diff --git a/.vscode/settings.json b/.vscode/settings.json
index a5fa3b2..986a1dc 100644
--- a/.vscode/settings.json
+++ b/.vscode/settings.json
@@ -2,6 +2,10 @@
   "[bibtex]": {
     "editor.formatOnSave": false
   },
+  "[git-commit]": {
+    "editor.rulers": [72],
+    "rewrap.wrappingColumn": 72
+  },
   "[ipynb]": {
     "editor.formatOnSave": false
   },
@@ -24,13 +28,10 @@
   },
   "cSpell.enabled": true,
   "editor.formatOnSave": true,
-  "editor.rulers": [88],
   "git.rebaseWhenSync": true,
+  "github-actions.workflows.pinned.workflows": [".github/workflows/ci.yml"],
   "python.analysis.autoImportCompletions": false,
-  "python.analysis.diagnosticMode": "workspace",
-  "python.formatting.provider": "black",
   "python.languageServer": "Pylance",
-  "python.linting.enabled": false,
   "python.testing.unittestEnabled": false,
   "rewrap.wrappingColumn": 88
 }
diff --git a/README.md b/README.md
index b93c77b..795de3a 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,8 @@
 # ComPWA demo notebooks
 
+[![code style: prettier](https://img.shields.io/badge/code_style-prettier-ff69b4.svg?style=flat-square)](https://github.com/prettier/prettier)
+[![Spelling checked](https://img.shields.io/badge/cspell-checked-brightgreen.svg)](https://github.com/streetsidesoftware/cspell/tree/master/packages/cspell)
+
 A collection of Jupyter notebooks that demonstrate features of the [ComPWA](https://github.com/ComPWA) packages [QRules](https://qrules.rtfd.io), [AmpForm](https://ampform.rtfd.io), and [TensorWaves](https://tensorwaves.rtfd.io). The notebooks are self-contained in the sense that they define their own pinned requirements and can be run independently in [Binder](https://mybinder.org) or [Google Colaboratory](https://research.google.com/colaboratory).
 
 ## Presentations
diff --git a/binder/requirements.txt b/binder/requirements.txt
index a502204..84902ba 100644
--- a/binder/requirements.txt
+++ b/binder/requirements.txt
@@ -7,35 +7,35 @@
 asttokens==2.4.0
 backcall==0.2.0
 comm==0.1.4
-contourpy==1.1.0
-cycler==0.11.0
+contourpy==1.1.1
+cycler==0.12.1
 decorator==5.1.1
-executing==1.2.0
-fonttools==4.42.1
-importlib-resources==6.0.1
-ipython==8.12.2
-ipywidgets==8.1.0
-jedi==0.19.0
-jupyterlab-widgets==3.0.8
+executing==2.0.0
+fonttools==4.43.1
+importlib-resources==6.1.0
+ipython==8.12.3
+ipywidgets==8.1.1
+jedi==0.19.1
+jupyterlab-widgets==3.0.9
 kiwisolver==1.4.5
-matplotlib==3.7.2
+matplotlib==3.7.3
 matplotlib-inline==0.1.6
 numpy==1.24.4
-packaging==23.1
+packaging==23.2
 parso==0.8.3
 pexpect==4.8.0
 pickleshare==0.7.5
-pillow==10.0.0
+pillow==10.0.1
 prompt-toolkit==3.0.39
 ptyprocess==0.7.0
 pure-eval==0.2.2
 pygments==2.16.1
-pyparsing==3.0.9
+pyparsing==3.1.1
 python-dateutil==2.8.2
 six==1.16.0
-stack-data==0.6.2
-traitlets==5.9.0
-typing-extensions==4.7.1
-wcwidth==0.2.6
-widgetsnbextension==4.0.8
-zipp==3.16.2
+stack-data==0.6.3
+traitlets==5.11.2
+typing-extensions==4.8.0
+wcwidth==0.2.8
+widgetsnbextension==4.0.9
+zipp==3.17.0
diff --git a/pyproject.toml b/pyproject.toml
index a075e12..b79391c 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -21,3 +21,17 @@ addopts = [
 filterwarnings = [
     "ignore:Passing a schema to Validator.iter_errors is deprecated.*:DeprecationWarning",
 ]
+
+[tool.tomlsort]
+all = false
+ignore_case = true
+in_place = true
+sort_first = [
+    "build-system",
+    "project",
+    "tool.setuptools",
+    "tool.setuptools_scm",
+]
+sort_table_keys = true
+spaces_indent_inline_array = 4
+trailing_comma_inline_array = true
diff --git a/requirements.txt b/requirements.txt
index ac89e54..f3abd2f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -9,85 +9,85 @@ aiosqlite==0.19.0
 anyio==4.0.0
 argon2-cffi==23.1.0
 argon2-cffi-bindings==21.2.0
-arrow==1.2.3
+arrow==1.3.0
 asttokens==2.4.0
 async-lru==2.0.4
 attrs==23.1.0
-babel==2.12.1
+babel==2.13.0
 backcall==0.2.0
 beautifulsoup4==4.12.2
-black==23.9.0
-bleach==6.0.0
+black==23.9.1
+bleach==6.1.0
 cachetools==5.3.1
 certifi==2023.7.22
-cffi==1.15.1
+cffi==1.16.0
 cfgv==3.4.0
 chardet==5.2.0
-charset-normalizer==3.2.0
+charset-normalizer==3.3.0
 click==8.1.7
 colorama==0.4.6
 comm==0.1.4
-contourpy==1.1.0
-cycler==0.11.0
-debugpy==1.7.0
+contourpy==1.1.1
+cycler==0.12.1
+debugpy==1.8.0
 decorator==5.1.1
 defusedxml==0.7.1
 distlib==0.3.7
 exceptiongroup==1.1.3
-executing==1.2.0
-fastjsonschema==2.18.0
-filelock==3.12.3
-fonttools==4.42.1
+executing==2.0.0
+fastjsonschema==2.18.1
+filelock==3.12.4
+fonttools==4.43.1
 fqdn==1.5.1
-identify==2.5.27
+identify==2.5.30
 idna==3.4
 importlib-metadata==6.8.0
-importlib-resources==6.0.1
+importlib-resources==6.1.0
 ipykernel==6.25.2
-ipython==8.12.2
-ipywidgets==8.1.0
+ipython==8.12.3
+ipywidgets==8.1.1
 isoduration==20.11.0
 isort==5.12.0
-jedi==0.19.0
+jedi==0.19.1
 jinja2==3.1.2
 json5==0.9.14
 jsonpointer==2.4
-jsonschema==4.19.0
+jsonschema==4.19.1
 jsonschema-specifications==2023.7.1
 jupyter-client==8.3.1
-jupyter-core==5.3.1
+jupyter-core==5.3.2
 jupyter-events==0.7.0
 jupyter-lsp==2.2.0
 jupyter-server==2.7.3
 jupyter-server-terminals==0.4.4
-jupyterlab==4.0.5
+jupyterlab==4.0.6
 jupyterlab-code-formatter==2.2.1
 jupyterlab-pygments==0.2.2
-jupyterlab-server==2.24.0
-jupyterlab-widgets==3.0.8
+jupyterlab-server==2.25.0
+jupyterlab-widgets==3.0.9
 kiwisolver==1.4.5
 markupsafe==2.1.3
-matplotlib==3.7.2
+matplotlib==3.7.3
 matplotlib-inline==0.1.6
-mistune==3.0.1
+mistune==3.0.2
 mypy-extensions==1.0.0
 nbclient==0.8.0
-nbconvert==7.8.0
+nbconvert==7.9.2
 nbformat==5.9.2
-nest-asyncio==1.5.7
+nest-asyncio==1.5.8
 nodeenv==1.8.0
 notebook-shim==0.2.3
 numpy==1.24.4
 overrides==7.4.0
-packaging==23.1
+packaging==23.2
 pandocfilters==1.5.0
 parso==0.8.3
 pathspec==0.11.2
 pexpect==4.8.0
 pickleshare==0.7.5
-pillow==10.0.0
+pillow==10.0.1
 pkgutil-resolve-name==1.3.10
-platformdirs==3.10.0
+platformdirs==3.11.0
 pluggy==1.3.0
 pre-commit==3.4.0
 prometheus-client==0.17.1
@@ -97,7 +97,7 @@ ptyprocess==0.7.0
 pure-eval==0.2.2
 pycparser==2.21
 pygments==2.16.1
-pyparsing==3.0.9
+pyparsing==3.1.1
 pyproject-api==1.6.1
 python-dateutil==2.8.2
 python-json-logger==2.0.7
@@ -108,30 +108,31 @@ referencing==0.30.2
 requests==2.31.0
 rfc3339-validator==0.1.4
 rfc3986-validator==0.1.1
-rpds-py==0.10.2
+rpds-py==0.10.4
 send2trash==1.8.2
 six==1.16.0
 sniffio==1.3.0
 soupsieve==2.5
-stack-data==0.6.2
+stack-data==0.6.3
 terminado==0.17.1
 tinycss2==1.2.1
 tomli==2.0.1
 tornado==6.3.3
 tox==4.11.3
-traitlets==5.9.0
-typing-extensions==4.7.1
+traitlets==5.11.2
+types-python-dateutil==2.8.19.14
+typing-extensions==4.8.0
 uri-template==1.3.0
-urllib3==2.0.4
+urllib3==2.0.6
 virtualenv==20.24.5
-wcwidth==0.2.6
+wcwidth==0.2.8
 webcolors==1.13
 webencodings==0.5.1
-websocket-client==1.6.2
-widgetsnbextension==4.0.8
+websocket-client==1.6.4
+widgetsnbextension==4.0.9
 y-py==0.5.9
 ypy-websocket==0.8.2
-zipp==3.16.2
+zipp==3.17.0
 
 # The following packages are considered to be unsafe in a requirements file:
 # setuptools