TL;DR

It seems that jekyll-toc is not supported.

I was looking into adding a table of contents (TOC) to the wider-range pages and found jekyll-toc. So far so good, it worked perfectly in my computer and, as a consequence, in the blog instance at Codeberg, because it’s generated locally.

Then I pushed also to GitHub Pages and… well, the result was not exactly what I was expecting, so to say.

I’ll have to investigate more, e.g. using the TOC capabilities provided by Kramdown, or whatever else.