diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 2b5356da..dcd71d9e 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -38,13 +38,14 @@ repos:
           )$
 
   - repo: https://github.com/ComPWA/repo-maintenance
-    rev: 0.0.198
+    rev: 0.0.199
     hooks:
       - id: check-dev-files
         args:
           - --pin-requirements=bimonthly
           - --repo-name=compwa-org
           - --repo-title=ComPWA Organization Documentation
+      - id: colab-toc-visible
       - id: fix-nbformat-version
       - id: format-setup-cfg
       - id: pin-nb-requirements
diff --git a/docs/adr/001/operators.ipynb b/docs/adr/001/operators.ipynb
index de6bbbed..22b2fc4c 100644
--- a/docs/adr/001/operators.ipynb
+++ b/docs/adr/001/operators.ipynb
@@ -397,6 +397,9 @@
   }
  ],
  "metadata": {
+  "colab": {
+   "toc_visible": true
+  },
   "kernelspec": {
    "display_name": "Python 3 (ipykernel)",
    "language": "python",
diff --git a/docs/adr/001/sympy.ipynb b/docs/adr/001/sympy.ipynb
index e3add367..60504ba1 100644
--- a/docs/adr/001/sympy.ipynb
+++ b/docs/adr/001/sympy.ipynb
@@ -1140,6 +1140,9 @@
   }
  ],
  "metadata": {
+  "colab": {
+   "toc_visible": true
+  },
   "kernelspec": {
    "display_name": "Python 3 (ipykernel)",
    "language": "python",
diff --git a/docs/adr/002/composition.ipynb b/docs/adr/002/composition.ipynb
index 6a877974..04652303 100644
--- a/docs/adr/002/composition.ipynb
+++ b/docs/adr/002/composition.ipynb
@@ -380,6 +380,9 @@
   }
  ],
  "metadata": {
+  "colab": {
+   "toc_visible": true
+  },
   "kernelspec": {
    "display_name": "Python 3 (ipykernel)",
    "language": "python",
diff --git a/docs/adr/002/expr.ipynb b/docs/adr/002/expr.ipynb
index f65e9a5e..b8477bbb 100644
--- a/docs/adr/002/expr.ipynb
+++ b/docs/adr/002/expr.ipynb
@@ -556,6 +556,9 @@
   }
  ],
  "metadata": {
+  "colab": {
+   "toc_visible": true
+  },
   "kernelspec": {
    "display_name": "Python 3 (ipykernel)",
    "language": "python",
diff --git a/docs/adr/002/function.ipynb b/docs/adr/002/function.ipynb
index 75aaacd3..16080635 100644
--- a/docs/adr/002/function.ipynb
+++ b/docs/adr/002/function.ipynb
@@ -223,6 +223,9 @@
   }
  ],
  "metadata": {
+  "colab": {
+   "toc_visible": true
+  },
   "keep_output": true,
   "kernelspec": {
    "display_name": "Python 3 (ipykernel)",
diff --git a/docs/report/000.ipynb b/docs/report/000.ipynb
index 69e38c1d..2bac38a0 100644
--- a/docs/report/000.ipynb
+++ b/docs/report/000.ipynb
@@ -926,6 +926,9 @@
   }
  ],
  "metadata": {
+  "colab": {
+   "toc_visible": true
+  },
   "keep_output": true,
   "kernelspec": {
    "display_name": "Python 3 (ipykernel)",
diff --git a/docs/report/001.ipynb b/docs/report/001.ipynb
index 0c778791..2b07acf5 100644
--- a/docs/report/001.ipynb
+++ b/docs/report/001.ipynb
@@ -711,6 +711,9 @@
   }
  ],
  "metadata": {
+  "colab": {
+   "toc_visible": true
+  },
   "kernelspec": {
    "display_name": "Python 3 (ipykernel)",
    "language": "python",
diff --git a/docs/report/002.ipynb b/docs/report/002.ipynb
index 077e16e0..3c08000d 100644
--- a/docs/report/002.ipynb
+++ b/docs/report/002.ipynb
@@ -1964,6 +1964,9 @@
   }
  ],
  "metadata": {
+  "colab": {
+   "toc_visible": true
+  },
   "kernelspec": {
    "display_name": "Python 3 (ipykernel)",
    "language": "python",
diff --git a/docs/report/003.ipynb b/docs/report/003.ipynb
index 4330f266..81c4a1f0 100644
--- a/docs/report/003.ipynb
+++ b/docs/report/003.ipynb
@@ -1112,6 +1112,9 @@
   }
  ],
  "metadata": {
+  "colab": {
+   "toc_visible": true
+  },
   "kernelspec": {
    "display_name": "Python 3 (ipykernel)",
    "language": "python",
diff --git a/docs/report/004.ipynb b/docs/report/004.ipynb
index b9cf37f9..1e858b15 100644
--- a/docs/report/004.ipynb
+++ b/docs/report/004.ipynb
@@ -560,6 +560,9 @@
   }
  ],
  "metadata": {
+  "colab": {
+   "toc_visible": true
+  },
   "kernelspec": {
    "display_name": "Python 3 (ipykernel)",
    "language": "python",
diff --git a/docs/report/005.ipynb b/docs/report/005.ipynb
index 4cd5f46d..5182a9f0 100644
--- a/docs/report/005.ipynb
+++ b/docs/report/005.ipynb
@@ -1045,6 +1045,9 @@
   }
  ],
  "metadata": {
+  "colab": {
+   "toc_visible": true
+  },
   "kernelspec": {
    "display_name": "Python 3 (ipykernel)",
    "language": "python",
diff --git a/docs/report/006.ipynb b/docs/report/006.ipynb
index 0063c715..bc51d585 100644
--- a/docs/report/006.ipynb
+++ b/docs/report/006.ipynb
@@ -552,6 +552,9 @@
   }
  ],
  "metadata": {
+  "colab": {
+   "toc_visible": true
+  },
   "kernelspec": {
    "display_name": "Python 3 (ipykernel)",
    "language": "python",
diff --git a/docs/report/007.ipynb b/docs/report/007.ipynb
index ef21c10b..1504da39 100644
--- a/docs/report/007.ipynb
+++ b/docs/report/007.ipynb
@@ -200,6 +200,9 @@
   }
  ],
  "metadata": {
+  "colab": {
+   "toc_visible": true
+  },
   "kernelspec": {
    "display_name": "Python 3 (ipykernel)",
    "language": "python",
diff --git a/docs/report/008.ipynb b/docs/report/008.ipynb
index a33517d8..e6d49e4c 100644
--- a/docs/report/008.ipynb
+++ b/docs/report/008.ipynb
@@ -279,6 +279,9 @@
   }
  ],
  "metadata": {
+  "colab": {
+   "toc_visible": true
+  },
   "keep_output": true,
   "kernelspec": {
    "display_name": "Python 3 (ipykernel)",
diff --git a/docs/report/009.ipynb b/docs/report/009.ipynb
index 2526cd9d..068c0184 100644
--- a/docs/report/009.ipynb
+++ b/docs/report/009.ipynb
@@ -1019,6 +1019,9 @@
   }
  ],
  "metadata": {
+  "colab": {
+   "toc_visible": true
+  },
   "kernelspec": {
    "display_name": "Python 3 (ipykernel)",
    "language": "python",
diff --git a/docs/report/010.ipynb b/docs/report/010.ipynb
index c2c211bd..dde486bb 100644
--- a/docs/report/010.ipynb
+++ b/docs/report/010.ipynb
@@ -756,6 +756,9 @@
   }
  ],
  "metadata": {
+  "colab": {
+   "toc_visible": true
+  },
   "keep_output": true,
   "kernelspec": {
    "display_name": "Python 3 (ipykernel)",
diff --git a/docs/report/011.ipynb b/docs/report/011.ipynb
index c8b67b5d..8166c2fe 100644
--- a/docs/report/011.ipynb
+++ b/docs/report/011.ipynb
@@ -4860,6 +4860,9 @@
   }
  ],
  "metadata": {
+  "colab": {
+   "toc_visible": true
+  },
   "kernelspec": {
    "display_name": "Python 3 (ipykernel)",
    "language": "python",
diff --git a/docs/report/012.ipynb b/docs/report/012.ipynb
index c3d83605..5388e5bc 100644
--- a/docs/report/012.ipynb
+++ b/docs/report/012.ipynb
@@ -379,6 +379,9 @@
   }
  ],
  "metadata": {
+  "colab": {
+   "toc_visible": true
+  },
   "keep_output": true,
   "kernelspec": {
    "display_name": "Python 3 (ipykernel)",
diff --git a/docs/report/013.ipynb b/docs/report/013.ipynb
index 221502bd..c8355dd6 100644
--- a/docs/report/013.ipynb
+++ b/docs/report/013.ipynb
@@ -648,6 +648,9 @@
   }
  ],
  "metadata": {
+  "colab": {
+   "toc_visible": true
+  },
   "kernelspec": {
    "display_name": "Python 3 (ipykernel)",
    "language": "python",
diff --git a/docs/report/014.ipynb b/docs/report/014.ipynb
index 7828a973..2aa44086 100644
--- a/docs/report/014.ipynb
+++ b/docs/report/014.ipynb
@@ -1728,6 +1728,9 @@
   }
  ],
  "metadata": {
+  "colab": {
+   "toc_visible": true
+  },
   "kernelspec": {
    "display_name": "Python 3 (ipykernel)",
    "language": "python",
diff --git a/docs/report/015.ipynb b/docs/report/015.ipynb
index 68114bf0..b27fe832 100644
--- a/docs/report/015.ipynb
+++ b/docs/report/015.ipynb
@@ -1665,6 +1665,9 @@
   }
  ],
  "metadata": {
+  "colab": {
+   "toc_visible": true
+  },
   "kernelspec": {
    "display_name": "Python 3 (ipykernel)",
    "language": "python",
diff --git a/docs/report/016.ipynb b/docs/report/016.ipynb
index 06419bfa..867cb65b 100644
--- a/docs/report/016.ipynb
+++ b/docs/report/016.ipynb
@@ -529,6 +529,9 @@
   }
  ],
  "metadata": {
+  "colab": {
+   "toc_visible": true
+  },
   "keep_output": true,
   "kernelspec": {
    "display_name": "Python 3 (ipykernel)",
diff --git a/docs/report/017.ipynb b/docs/report/017.ipynb
index 80cae815..fc02e82b 100644
--- a/docs/report/017.ipynb
+++ b/docs/report/017.ipynb
@@ -742,6 +742,9 @@
   }
  ],
  "metadata": {
+  "colab": {
+   "toc_visible": true
+  },
   "kernelspec": {
    "display_name": "Python 3 (ipykernel)",
    "language": "python",
diff --git a/docs/report/018.ipynb b/docs/report/018.ipynb
index a06ffa7c..275f9a6f 100644
--- a/docs/report/018.ipynb
+++ b/docs/report/018.ipynb
@@ -619,6 +619,9 @@
   }
  ],
  "metadata": {
+  "colab": {
+   "toc_visible": true
+  },
   "kernelspec": {
    "display_name": "Python 3 (ipykernel)",
    "language": "python",
diff --git a/docs/report/019.ipynb b/docs/report/019.ipynb
index 7a1f3162..ae1fc7c9 100644
--- a/docs/report/019.ipynb
+++ b/docs/report/019.ipynb
@@ -253,6 +253,9 @@
   }
  ],
  "metadata": {
+  "colab": {
+   "toc_visible": true
+  },
   "kernelspec": {
    "display_name": "Julia 1.9.3",
    "language": "julia",
diff --git a/docs/report/020.ipynb b/docs/report/020.ipynb
index 16f79977..b4b83772 100644
--- a/docs/report/020.ipynb
+++ b/docs/report/020.ipynb
@@ -1376,6 +1376,9 @@
   }
  ],
  "metadata": {
+  "colab": {
+   "toc_visible": true
+  },
   "kernelspec": {
    "display_name": "Python 3 (ipykernel)",
    "language": "python",
diff --git a/docs/report/021.ipynb b/docs/report/021.ipynb
index 22202c06..de0db534 100644
--- a/docs/report/021.ipynb
+++ b/docs/report/021.ipynb
@@ -2572,6 +2572,9 @@
   }
  ],
  "metadata": {
+  "colab": {
+   "toc_visible": true
+  },
   "kernelspec": {
    "display_name": "Python 3 (ipykernel)",
    "language": "python",
diff --git a/docs/report/022.ipynb b/docs/report/022.ipynb
index 0594817c..6bcc4fed 100644
--- a/docs/report/022.ipynb
+++ b/docs/report/022.ipynb
@@ -742,6 +742,9 @@
   }
  ],
  "metadata": {
+  "colab": {
+   "toc_visible": true
+  },
   "kernelspec": {
    "display_name": "Python 3 (ipykernel)",
    "language": "python",
diff --git a/docs/report/023.ipynb b/docs/report/023.ipynb
index 08f96e8c..a2050b9d 100644
--- a/docs/report/023.ipynb
+++ b/docs/report/023.ipynb
@@ -144,6 +144,9 @@
   }
  ],
  "metadata": {
+  "colab": {
+   "toc_visible": true
+  },
   "kernelspec": {
    "display_name": "Python 3 (ipykernel)",
    "language": "python",