Resource monitor that shows usage and stats for processor, memory, disks, network and processes. Easy to use, with a game inspired menu system. Fast and "mostly" responsive UI with UP, DOWN keys process selection. Ability to filter processes. Easy switching between sorting options. Send SIGTERM, SIGKILL, SIGINT to selected process. UI menu for changing all config file options. Auto scaling graph for network usage.

The neat thing is, it's implemented as a bunch of shell scripts. The only dependencies are bash, ps, and awk.