quarto-extensions

You create custom Quarto output formats by scaffolding an extension that unifies _extension.yml manifests, brand.yml styling, and Lua filters to render HTML, RevealJS, Dashboard, and Typst outputs.

A Quarto format extension is a structured package containing _extension.yml, brand.yml, _schema.yml, and Lua filters that adds custom document, presentation, or PDF outputs. You need one to distribute unified branded formats across projects.

You validate Quarto extension options and branding by defining a _schema.yml file for option checking and applying brand.yml across multiple formats to ensure consistent styling and configuration validation across HTML and Typst outputs.

Yes, you can use Lua filters and module loading within a Quarto format extension to enable format-aware rendering, allowing you to manipulate content dynamically during the conversion process for custom document and presentation outputs.

Quarto extension scaffolding supports Typst and Dashboard formats alongside HTML and RevealJS, allowing you to declare multi-format configurations in _extension.yml and distribute custom outputs across all these presentation and document types.

Quarto extension option validation fails when _schema.yml is missing or misconfigured, preventing proper option checking; ensure your extension structure correctly includes manifest, branding, and schema files to enforce valid configurations.