I created &overseer for the Handmade Essentials Jam. It's an attempt at improving on Task Manager. It was a fun project that took me deep into the weeds in some winternals stuff and I spent a lot of time learning about some poorly documented, or undocumented save for the work of reverse engineers, kernel interfaces (and not as much writing code as I would have liked). It has some interesting capabilities like history for plotting of the system, each process, and each thread. It's missing some much needed ones like Disk, Network, GPU, and grouping processes as apps like Task Manager does (turns out this is trickier than it appears). I'm considering continuing work on it to add these features, clean up the UI, and possibly port to Linux, especially if there's demand for it.