Claudio Bonavolta Project Users?

Has anyone used any of his equipment ideas? He has an interesting site Bonavolta that describes his software (which is quite handy and free!) but also shows an enlarger interface that is intriguing. Have any of you built any of this? The site is worth a visit just to get some darkroom design inspiration.... I guess it might be easier to enter his site at Photo Bonavolta

I use some of the colour formulas posted on his website.

Claudio is on the pure silver mailing list. You can post a question for him there.