Template system tutorial

This page is kept as the old tutorials/render entry point. The long template-system tutorial has been split so each kind of information now has a clearer home.

Where the content moved

New template documentation homes

Need	Read this page
Author a custom template step by step	Template author tasks
Understand the renderer pipeline and packaging boundary	Template rendering explanation
Look up config.yaml keys, styles, filters, globals, and tests	Template configuration reference
Choose and use a built-in template	First generated runtime and Built-in templates reference

What remains here

Use this page as a compatibility landing page for older links. New maintenance work should update the task, explanation, or reference page above instead of adding new long-form material here.