Can I create YAML anchors in _config.yml and call the alias in page frontmatter?

[MichaelCurrin]

Related answer

Is it possible to assign one variable in _config.yml to another?

In _config.yml, I’d like to do something like this: description: >- some really long description bio: {{ description }} In other words, I just want bio to point to, be an alias to, or be an exact copy of, description, so that whether I use {{ site.description }} or {{ site.bio }} in my liquid throughout the site, I get the same thing. My above attempt doesn’t work. How can I do this?