Congrats on the launch!
The dashboard looks really well done, especially the path identification.
I'm curious why you decided to start with Ruby. Anecdotally, it doesn't seem as big of a problem as other languages with either (a) more upgrades or (b) worse package managers.
Disclosure: I'm the cofounder of https://grit.io which also does some dependency management, but focused on automating the actual code changes.