I've been using #GKrellM (https://en.wikipedia.org/wiki/GKrellM , a system monitor) basically since I've started using #Linux in 2000
It's currently flagged for removal from #Gentoo. No maintainer for the package. And upstream is dead. Literally, even, the main dev Bill Wilson died in 2021 :(
That's how my current gkrellm setup looks. Well, "current", it's not I've changed it in any way ever