Different websites on different interfaces and rewrite rules

I am working on setting up an OpenWrt router (GL-iNET GL-AR150) as a webserver for static sites for use in an art-exhibition setting.
What I need is to:

  • Serve Luci on the LAN interface only, on port 80
  • Serve a static website from a USB drive via Wifi on port 80
  • Rewrite / redirect any URL the wifi interface only to the locally hosted site

I have Lighttpd set up and running, I have found the documentation on how to set up 2 sites on two different ports, but not if it is possible to serve different sites on different interfaces.
I also have the USB drive automount setup and working.

Any help or suggestions on how to get the above three steps done would be greatly appreciated.

Since it's two different interfaces, you could use two lighttpds.

Or https://redmine.lighttpd.net/projects/lighttpd/wiki/FrequentlyAskedQuestions#How-do-I-bind-to-more-than-one-address