This doesn't do anything more than the official dev board, actually a lot less than that.
It's an exercise for me to learn more about the compute module and how to route high speed signals.
Its not a good breakout in any shape or form but it might help others getting started with the CM. It only implements basic stuff to get some use out of the module.
Booting from eMMC and SD-Card
USB (ethernet dongle working, max speed of about ~820KB/s over SFTP).
DSI Display connection
Those are all the features I want to get going right now. Maybe at some point HDMI but I highly doubt it will be possible with a milled PCB without any form of impedance control.
I calculated* all differential signals for a double sided 1.5mm FR1 board with 35um copper. The FR1 boards you get with the Othermill.
*As far as that is actually possible with a milled board. I tried to not be totally off but of course the tolerance will be absolute utter