Ideas for Carte Blanche card projects?

I'm looking for ideas for Carte Blanche projects.

The Carte Blanche is an FPGA card that plugs into the Apple // slot. (

It would be fun to make a stereo sound card, or something like that.

I have an old mountain computer music card, which is an 8-voice 8-bit card, but I'm open to suggestions.


I've used the card as a Z-80 card, and a video out card.  It's expensive to use for those purposes.A 6809 or 680X0 CPU would be interesting, but might be challening to implement.I'm looking for ways to load new bitstreams into the thing without having to purchase Altium designer