Domestik is another monitoring system (à la Nagios). But the aims here are :
* to be as lightweight as possible at client side,
* all communication is done thru webservices
* to expose alerts thru web services
* to provide trend on machines' figures
* ...
It is currently at it's very early stage and I'm focusing on my own home network monitoring (in other word, powerful notifications à la Nagios aren't my priority ... but anyone is welcome to help :) ).