Or see the list of project sponsors.
This is the documentation builder behind Quickref site. It is good for generating API references for third party libraries.
Most interesting features of
Decltuses Texinfo file format for intermediate document store. This makes it possible to generate not only HTML but also PDF and other output formats.
As always, I've created a template project, ready to be used:
Here is how it is rendered in HTML:
And in PDF:
Declt does not support markup in docstrings and cross-referencing does not work there.
Some other pros and cons are listed on example site.
Remember, all example projects from https://github.com/cl-doc-systems include a build script and GitHub Action to update documentation on every commit!