diff --git a/docs/snippets/INDEX.md b/docs/snippets/INDEX.md
index 1166d1610bc6..fa025a87be83 100644
--- a/docs/snippets/INDEX.md
+++ b/docs/snippets/INDEX.md
@@ -30,7 +30,7 @@ Use it to quickly find copy-pastable snippets of code for any Rerun feature you'
 | **Send columnar data** | `points3d_send_columns` | Use the `send_columns` API to send several point clouds over time in a single call | [🐍](https://github.com/rerun-io/rerun/blob/main/docs/snippets/all/archetypes/points3d_send_columns.py) | [🦀](https://github.com/rerun-io/rerun/blob/main/docs/snippets/all/archetypes/points3d_send_columns.rs) | [🌊](https://github.com/rerun-io/rerun/blob/main/docs/snippets/all/archetypes/points3d_send_columns.cpp) |
 | **Send columnar data** | `scalar_send_columns` | Use the `send_columns` API to send scalars over time in a single call | [🐍](https://github.com/rerun-io/rerun/blob/main/docs/snippets/all/archetypes/scalar_send_columns.py) | [🦀](https://github.com/rerun-io/rerun/blob/main/docs/snippets/all/archetypes/scalar_send_columns.rs) | [🌊](https://github.com/rerun-io/rerun/blob/main/docs/snippets/all/archetypes/scalar_send_columns.cpp) |
 | **Send custom data** | `any_values` | Log arbitrary data | [🐍](https://github.com/rerun-io/rerun/blob/main/docs/snippets/all/tutorials/any_values.py) | [🦀](https://github.com/rerun-io/rerun/blob/main/docs/snippets/all/tutorials/any_values.rs) |  |
-| **Send custom data** | `custom_data` |  | [🐍](https://github.com/rerun-io/rerun/blob/main/docs/snippets/all/tutorials/custom_data.py) | [🦀](https://github.com/rerun-io/rerun/blob/main/docs/snippets/all/tutorials/custom_data.rs) | [🌊](https://github.com/rerun-io/rerun/blob/main/docs/snippets/all/tutorials/custom_data.cpp) |
+| **Send custom data** | `custom_data` | Shows how to implement custom archetypes and components | [🐍](https://github.com/rerun-io/rerun/blob/main/docs/snippets/all/tutorials/custom_data.py) | [🦀](https://github.com/rerun-io/rerun/blob/main/docs/snippets/all/tutorials/custom_data.rs) | [🌊](https://github.com/rerun-io/rerun/blob/main/docs/snippets/all/tutorials/custom_data.cpp) |
 | **Send custom data** | `extra_values` | Log extra values with a `Points2D` | [🐍](https://github.com/rerun-io/rerun/blob/main/docs/snippets/all/tutorials/extra_values.py) | [🦀](https://github.com/rerun-io/rerun/blob/main/docs/snippets/all/tutorials/extra_values.rs) |  |
 | **Send partial updates** | `mesh3d_partial_updates` | Log a simple colored triangle, then update its vertices' positions each frame | [🐍](https://github.com/rerun-io/rerun/blob/main/docs/snippets/all/archetypes/mesh3d_partial_updates.py) | [🦀](https://github.com/rerun-io/rerun/blob/main/docs/snippets/all/archetypes/mesh3d_partial_updates.rs) | [🌊](https://github.com/rerun-io/rerun/blob/main/docs/snippets/all/archetypes/mesh3d_partial_updates.cpp) |
 | **Send partial updates** | `points3d_partial_updates` | Demonstrates usage of the new partial updates APIs | [🐍](https://github.com/rerun-io/rerun/blob/main/docs/snippets/all/archetypes/points3d_partial_updates.py) | [🦀](https://github.com/rerun-io/rerun/blob/main/docs/snippets/all/archetypes/points3d_partial_updates.rs) | [🌊](https://github.com/rerun-io/rerun/blob/main/docs/snippets/all/archetypes/points3d_partial_updates.cpp) |
@@ -151,7 +151,7 @@ _All snippets, organized by the [`Archetype`](https://rerun.io/docs/reference/ty
 | **[`Points3D`](https://rerun.io/docs/reference/types/archetypes/points3d)** | `migration/log_line` |  | [🐍](https://github.com/rerun-io/rerun/blob/main/docs/snippets/all/migration/log_line.py) | [🦀](https://github.com/rerun-io/rerun/blob/main/docs/snippets/all/migration/log_line.rs) |  |
 | **[`Points3D`](https://rerun.io/docs/reference/types/archetypes/points3d)** | `quick_start/quick_start_connect` | Connect to the viewer and log some data | [🐍](https://github.com/rerun-io/rerun/blob/main/docs/snippets/all/quick_start/quick_start_connect.py) | [🦀](https://github.com/rerun-io/rerun/blob/main/docs/snippets/all/quick_start/quick_start_connect.rs) | [🌊](https://github.com/rerun-io/rerun/blob/main/docs/snippets/all/quick_start/quick_start_connect.cpp) |
 | **[`Points3D`](https://rerun.io/docs/reference/types/archetypes/points3d)** | `quick_start/quick_start_spawn` | Spawn a viewer and log some data | [🐍](https://github.com/rerun-io/rerun/blob/main/docs/snippets/all/quick_start/quick_start_spawn.py) | [🦀](https://github.com/rerun-io/rerun/blob/main/docs/snippets/all/quick_start/quick_start_spawn.rs) | [🌊](https://github.com/rerun-io/rerun/blob/main/docs/snippets/all/quick_start/quick_start_spawn.cpp) |
-| **[`Points3D`](https://rerun.io/docs/reference/types/archetypes/points3d)** | `tutorials/custom_data` |  | [🐍](https://github.com/rerun-io/rerun/blob/main/docs/snippets/all/tutorials/custom_data.py) | [🦀](https://github.com/rerun-io/rerun/blob/main/docs/snippets/all/tutorials/custom_data.rs) | [🌊](https://github.com/rerun-io/rerun/blob/main/docs/snippets/all/tutorials/custom_data.cpp) |
+| **[`Points3D`](https://rerun.io/docs/reference/types/archetypes/points3d)** | `tutorials/custom_data` | Shows how to implement custom archetypes and components | [🐍](https://github.com/rerun-io/rerun/blob/main/docs/snippets/all/tutorials/custom_data.py) | [🦀](https://github.com/rerun-io/rerun/blob/main/docs/snippets/all/tutorials/custom_data.rs) | [🌊](https://github.com/rerun-io/rerun/blob/main/docs/snippets/all/tutorials/custom_data.cpp) |
 | **[`Points3D`](https://rerun.io/docs/reference/types/archetypes/points3d)** | `tutorials/timelines_example` |  | [🐍](https://github.com/rerun-io/rerun/blob/main/docs/snippets/all/tutorials/timelines_example.py) | [🦀](https://github.com/rerun-io/rerun/blob/main/docs/snippets/all/tutorials/timelines_example.rs) | [🌊](https://github.com/rerun-io/rerun/blob/main/docs/snippets/all/tutorials/timelines_example.cpp) |
 | **[`Points3D`](https://rerun.io/docs/reference/types/archetypes/points3d)** | `views/spatial3d` | Use a blueprint to customize a Spatial3DView | [🐍](https://github.com/rerun-io/rerun/blob/main/docs/snippets/all/views/spatial3d.py) |  |  |
 | **[`Scalar`](https://rerun.io/docs/reference/types/archetypes/scalar)** | `archetypes/scalar_simple` | Log a scalar over time | [🐍](https://github.com/rerun-io/rerun/blob/main/docs/snippets/all/archetypes/scalar_simple.py) | [🦀](https://github.com/rerun-io/rerun/blob/main/docs/snippets/all/archetypes/scalar_simple.rs) | [🌊](https://github.com/rerun-io/rerun/blob/main/docs/snippets/all/archetypes/scalar_simple.cpp) |
diff --git a/docs/snippets/all/tutorials/custom_data.py b/docs/snippets/all/tutorials/custom_data.py
index 907683eff835..422197690dd9 100755
--- a/docs/snippets/all/tutorials/custom_data.py
+++ b/docs/snippets/all/tutorials/custom_data.py
@@ -1,4 +1,3 @@
-#!/usr/bin/env python3
 """Shows how to implement custom archetypes and components."""
 
 from __future__ import annotations