The navigation between consecutive pages and the table of contents (TOC) is mostly generated from already existing data. We only need to set the additional weight parameter for documentation pages.

Which parameter orders the pages depends on their section:

Documentation pages
are ordered by their weight. This is the one additional mandatory parameter we need to fill with a decimal number.
News, blog, and article postings
are usually ordered by the publishing date which is mandatory for all pages anyway. We have the option to add a weight number which takes precedence, then.

Order of pages

Documentation

The order of documentation pages depends only on the general page weight. The first page gets the smallest decimal weight number, the second page a bigger one and so on. Every new documentation page contains a placeholder (→ Content introduction).

This simple concept has one big caveat: We should never use continuous decimal numbers in a growing project because we probably add new pages and sections later or reorder existing ones. With continuous numbering, we would need to change all numbers again and again. Better to leave ample space (lots of missing numbers) right from the start.

For this project, I was expecting roughly 10 sections with 10 documentation pages in each one. I chose to use only every tenth decimal number in the beginning. The first section got weight: 100, the first page therein weight: 110, the second section weight: 200 and so on.

Postings

Are usually ordered by their mandatory publishing date. But we can optionally add weight if we want a posting to appear always first: We give him and only him weight: 1.

Hugo offers many other options to order pages. The effort to adapt the templates for specific use cases should be relatively small.

Table of Contents (ToC)

The theme fills the ToC with three levels of headings by default. The minimum number of headings for displaying the TOC is 3 by default.

These constraints are configurable in the params section of our project config or individually in the page frontmatter:

toc:
  startLevel: 2      
  endLevel: 4        
  minNumHeadings: 2

We can reduce the depth with endLevel and change the minimum number of headings for a TOC with minNumHeadings.

As far as I can see there is no good reason to ever change the startLevel.