Thanks for the answer Paul !
I like the decision, to maybe make the Tape/Userport optional attachable via PMOD, or 50-pin IDC.
If i may ask one more question: What will be the operational Voltage ?
Since the SID operates with +5VDC and +9VDC/12VDC (8580/6581)
and the FPGA normally runs on 3.3VDC, will the Voltages be generated onboard, will you be using transceivers again (Like on the widget board)?
What are your plans regarding this ?