I've no interest in building an offline version. It would be a huge download because fly.dsc.net uses a large database of waypoints. It wouldn't work on PCs and Macs and PDAs, etc. etc. And anyway, there are others available already.
I'd have no problem conforming to some quality standards if this were a commercial project, but this is resolutely non-commercial, so that isn't going to happen here.
As for it being EU legislation, I can see your point. Perhaps all that fly.dsc.net will amount to then is demonstrating that an acceptable fast and easy presentation of Notams isn't difficult.