i Would like to create a POE power and ethernet delivery circuit for the pi zero, Setting aside the actual circuit of the POE and ethernet, I am first concerned on two things:
How do i deliver Power to the zero via the GPIO? should i feed 5v to the 5v pins? i assume that by doing this i bypass a fuse so i have to place that in my 5v output.
How do i deliver ethernet data to the zero via GPIO, though SPI ? something that already has native/3rd party software support because i am not experienced in the low levels of linux.