I'm really curious about the tech in this game, and this is for sure an adventure in architecture like no other - so I'll enjoy doing those notebooks and getting as far as I can to my own builds running, next time I'm in the 'lab kind of mood.

What's really fascinating, is all the modding that has already started on this. Those of us who have really, really fond memories of Tempest, Back In The Day™, are sort of getting our minds blown, that the source is not only available, the PDP11 is there for the taking, and MAME can give you that ol' happy feeling, but also there are new versions not just to be played, but to be made .. SVG to playable tunnel, wtf?! Delightful!

Kinda neat, imho. I think this aspect of the retro- scene is one of the reasons its so compelling - and important - as it quite clearly demonstrates that technology doesn't get old - its users do. There is always a new way to apply technology, even if it was created 'ages' ago ..