Since the web server can run on a computer that has no keyboard, no
console, no operating system to speak of and no display, the admin
functions must be pretty comprehensive. I need a complete file manager,
the capacity to line edit configuration data and scripts and full
support for diagnostics and monitoring all through the web browser front
end. I am not quite there yet but you can see most of it coming
together. I am integrating the CRUD forms manager for data that formerly
ran purely in HTML 1.01 a few years ago. That was taking backward
compatible a little too far.
Ideally you should be able to actually repurpose and even redesign the web server application logic altogether if need be purely through the HTML interface.