The numericstream project would not be possible without some fairly amazing work created by lots of people and given away to the open source community:
[pugixml] (https://code.google.com/p/pugixml/)
[SQLite] (http://www.sqlite.org/)
[xammp] (http://www.apachefriends.org/en/xampp.html)
I'm also hoping to add a regex string driver using [tiny-rex] library (http://tiny-rex.sourceforge.net/) in the near future.
On the client side the php has been deliberately written without using the whole host of open source charting libraries around. As some of what I hope to write in the way of some fairly complex plots could never be accomplished using these I started from scratch with even the simple plots that could have relied on previously written code. This approach should mean that there is a standard interface to all the php plots, no matter how complex / simple or bespoke they are.