Head

Also called “front matter” in other software. Useful for custom templating.

Supports simple key-value pairs, json, yaml, toml.

Local

You can define properties per document.

Special keys:

---
title Apple Pie
date 2026-08-24
hide 1
---

# My First Apple Pie

Global

You can define global properties in root index document head.

Can also override them with -def key=value command arguments.

Special keys:

Objects

Head is applicable to objects.

{
  "head": {
    "date": "2026-08-24",
    "gallery": true
  }
}