Collections & Data

The queryable collections every template has access to, and where global JSON data comes from.

Collections

Collection	Contents
`collections.all`	All templates, except those excluded or acting as a parent pagination template.
`collections.post`	All items where `type: post`, sorted by `date` descending.
`collections.tags`	Unique list of tags across posts.
`collections.byTag[slug]`	Posts grouped by slugified tag.
`collections.global`	Nested structure built from JSON files in `_data/`, mirroring that directory's folder structure.

Global data (_data/)

Any .json file placed under _data/ is loaded into collections.global, with nested directories producing nested keys — so _data/site/nav.json ends up at collections.global.site.nav. It's a plain way to hand arbitrary structured data (site metadata, a nav menu, a list of authors) to every template without hand-writing a loader for it.