Self-hosted app to view sever health?

Heya, so I have now recently set up a bunch of different services on my debian server. Wondering if anyone has any suggestion to any applications I can host to view disk usage - cpu/gpu performance, fans, etc etc.. basically a nice and clean UI over the hardware. Already working on setting up a homepage for viewing the health of my docker containers, but need something for hardware level. 10+ bonus points if someone could mention an app that I can mange my other disks with, as in format, partition etc.

Thanks for any insights as always 🌻