Don’t know if this helps since dokuwiki lets me link pages, but I have a main page where I just do a one paragraph description of every big thing in use.

each page has:

• an in depth description,
• how it’s set up,
• a list of features i use,
• how it connects to other services,
• and a miscellaneous for everything else

I’ll also add any notes in the misc section in case I need to reference them later. If a service is mentioned, I’ll create a page for it and link to it every time I mention it. That way nothing is more than a few clicks away and the documentation grows naturally as long as you don’t have any monolithic application. Example: (main -> Docker -> Project_Ozone_2 -> custom configurations Or main -> Joomla -> wysiwyg ->JCE Editor)

I also had a professor tell me to just write everything down first and then focus on formatting to find what kind of structure suits your needs best.