Ask HN: I am looking for a server monitoring tool featured on HN

Hello HN,

I am looking for a tool I saw on HN about a or two month ago. I believe it was a Ruby app that you installed on a server. Then you were supposed to tunnel via ssh and visit a localhost website. From there you could look at the server's performance including CPU and RAM. It was kinda like New Relic, but self hosted.

If this is the wrong place to post this, let me know. Sorry in advance for disrupting your Monday.

Marshall