It is heavily based on MediaWiki (version 1.16.0).
Other parts of it are:
To include one section of a page into another, enclose in the page you want to select with sections and a tag (unique):
<section begin=CaerCaradoc2020 /> ... <section end=CaerCaradoc2020 />
Then, in the page where this is to be included, use lst template with the page name and the tag:
The <a> tag is forbidden, therefore internal links must be set with div or span (span uniquely in a header):
<div id="Unique anchor name 1">optional text</div> <span id="Unique anchor name 2">optional text</span> Rendered block-level and inline, respectively. Doing this would allow for [[#Unique anchor name 1]] on the same page or [[Help:Links#Unique anchor name 1]] on a different page. Omit the "optional text" for an invisible anchor. Setting an anchor in a section heading ==<span id="Alternate Section Title"></span>Section heading== Note the placement. This must be a "span" tag, not a "div". (Such anchors allow sections to be retitled without breaking incoming links.)