Create new placeholder

[ddomdel]

Is it possible to create a new placeholder which "sees" the frontmatter of a post under a category?

Because, currently, I can only access the :name placeholder, as you can see below in the permalinks

My goal is to make the /categories/ in the /categories/:name dynamic. In this case, accessing a frontmatter from a post.

jekyll-archives:
  enabled:
    - categories
    - tags
  layouts:
    category: archive-taxonomy
    tag: archive-taxonomy
  permalinks:
    category: /categories/:name/
    tag: /tags/:name/