Made me think that meta is, partially, a documentation platform.
Searching for example.discourse.com in the documentation returns 46 results (and other topics may use another domain).
Those topics could benefit from placeholders. Single example of a topic with many discourse.example.com mentions: Discourse Doc Categories
What about using placeholder-forms on those topics?
100% agree @Canapin! I’m a big fan of the placeholder-forms component and I use it on all my personal and business Discourses, for documentation, creating Runbooks, and for semi-automating processes which aren’t ready for a Bash script.
Here’s an example that uses a Placeholder Publishing a Material for MkDocs site to Azure, with automatic branch/PR preview deployments - blog - Baw Medical Ltd
I’d love to see articles in Documentation > Self-Hosting and Community wiki > Sysadmins use placeholders wherever there is some text/command to use which needs real-time customisation with user input.