I finally posted the latest revision KiCad and Gerber files.  It now includes a surface mount push-button switch on the reset line which allows one to set it to run it for a set time, then go into a very low power mode until the button is hit to run again.  I gotta smack myself for not adding this in the first revision.

I found the smd push buttons cheaply on Aliexpress:

https://www.aliexpress.com/item/1068215251.html?spm=a2g0s.9042311.0.0.3d2a4c4dJ8jSCE

I'll also post a few more firmware examples that take advantage of the button.