Running a web browser on console

I'd like to be able to make the proxmox server completely self contained.
That is, have the possibility to run only a web browser on the console for configuration monitoring. No other applications and no window manager.
Normally, this would not be used, but for our applications, there may be times where a separate PC would not be available.
Also, a lot of our customers have removed java, so some places have no possibility of connecting.

Now I'm a complete novice here, so please be gentle with me!

I guess I will need an X server, a web browser, java, and some kind of script to start everything.

Does anyone have any suggestions?