Come off it, its a web site that displays some data off another site. They aren't that difficult, they are just time consuming. You can even drag the stuff off into relational databases and use off the shelf programs if you don't have the time but have the desire and some cash.
I did similar a few years back (~15) by taking the output of a unix resource program (tops IIRC) over a TCP link into a java program and displayed the resource utilisation on a PC in real time while we were working on a bit of System X. It had widgets where the background was a bar graph and the text was the value that was written from scratch as the libraries for that sort of stuff hadn't been invented then.
Unless you disagree with him you won't understand how he thinks.