Most recently, a tool for identifying NTP daemons and testing their capabilities: https://github.com/LevitatingBusinessMan/ntpscan

I am also working on a web frontend for rrdtool (for graphing collectd statistics): https://github.com/LevitatingBusinessMan/collectrack

And a wayland bar that is configured via a Ruby DSL: https://github.com/LevitatingBusinessMan/rubybar