I made a small interposer board for the breadboard. I wanted to have all the X and Y pins available. The DIP28, which I use to, does not have the X7..X12 pins exposed. The only drawback is, that this board makes access to the buttons a little bit difficult. At least I could put the reset switch on that board too. Soldering pads for a diode at Vin are also on the board. The Kicad files are here:
https://github.com/robert-hh/PYBD-Adapter
With that interposer stuck to the top, the PYBD looks like a porcupine.

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