Here's a little board I designed:
CC-BY-SA
Files here: https://github.com/TomWhitwell/Axo-Control
OSHPark project here: https://oshpark.com/shared_projects/XJm2ysZW
Seems to work well, only oddness is that there's some kind of signal going out of PB8 which makes one of the LEDs glow UNLESS you connect it to a digital output.