This is two hacks actually. The first was swapping the male header for a 90 female. Soldered on the bottom instead of the top maintains the correct pinout. And it lets me plug it directly into a pHat Stack or mini Black hat Hacker. I can plug it into the ribbon cable header and ditch the ribbon cable. All the ports are pointing up for easy access. The Pibow case will fit with some minor modifications.
The second hack was adding a shutdown and boot up buttons. I used two PICO Captain Resetti buttons. One on GPIO 3 for boot. and one on GPIO 5 for shutdown.
If you shutdown and leave your Pi powered, momentarily grounding GPIO 3 will have it boot up. And you can use it to shutdown after adding dtoverlay entry to config.txt.
There is a gotcha though, it won’t work on GPIO 3 if i2c is enabled, you have to use an alternate GPIO pin, like so
It just worked out that GPIO 3 is two pins away from a ground pin, same deal for GPIO 5. That let me use the PICO reset button. The Castellated edges made soldering easy. They will be on the back side (bottom) of the Pi. Not a big deal for me as thats the side facing me in my use case scenario.
In that first picture my Boot Up and Shut Down buttons are on the second Proto Zero that has an RV3028 RTC breakout on it.