I fixed the punctuation, and have added a line about the design being open source / available on the InterNEP.
To answer what he is going to do with it first: At this point Wazu is like the Linus Torvald (or maybe Stallman...) of SARP. He has enough money to where he doesn't really need to worry about it so he is just doing things because he wants to do them. He's also liked the spacers and has been helping them out for years, with plenty of RP to back that up.
As for when does he have the time to work on this?: Wazu is almost always doing several things at once. Anytime I've posted him walking around with his datapad while on the Eucharis Wazu has been working on something. All that time he is walking between rooms, eating, showering, or the entire time during the Kuvexian Space-Station mission where he stayed in his room, Wazu has been working on this kind of stuff and adding to his great big repository of 'things I might need later'. It isn't something I've really been writing about directly, but I have been posting frequently about Wazu's work habits and how often he is looking at his datapad for one reason or another.
Your follow up question would probably be: 'Why hasn't the SAoY gotten any cool new stuff from the Waz?' Wazu did try to make a Rixxikor sterilization virus but Hanako put the breaks on that. I have a bunch of art and everything for it, it just didn't make it into use! There are some things Wazu would like to make for the armor team, but so far I haven't quite gotten there yet.
As for the issue of when in time did this get made, I figure SARP kinda works on comic-book time. Not all of the plots may be happening at exactly the same time, and there is plenty of down-time between threads so that numbers can be fudged and things could be made to line up. It has been YE_39 for a while in 188604 and it makes sense that if Wazu didn't have this ready already, that it would come available in the next few days/weeks/whatever.