Problem identified

It looks unlikely that anyone will create Joomla 6 specific Help pages in docs.joomla.org. In fact doing so would be a bad idea as it would require us to maintain a system that many of us have come to dislike. So I propose:

Proposed solution

• Make the $helpurl parameter stored in configuration.php user configurable.
• Set the default value to https://help.joomla.org/proxy?keyref=Help50:{keyref}&lang={langcode}
• Revise the method of building the index of Help pages to use the language string keys rather than fetching them from docs.joomla.org

The immediate result of this suggestion is that we will be using Joomla 5 help pages in Joomla 6. I believe that there will be few significant changes so I doubt this will be a big problem.

The ultimate result will be that we can easily switch to a different help proxy server when a suitable one emerges.

Open questions

I might be able to create a PR myself but if anyone else would like to tackle it whilst in the Alpha phase I would gladly demur.