**You need to have full shell access to use any of my tidbits here, whether this is by developer mode (which is what I did), or some other method you come up with.
While I could go and dual-boot the cr-48 into Ubuntu, I picked to leave the Chrome OS, and modify it to make it more shell friendly.
**You also need to make the root partition writable, and turn off boot verification.
sudo /usr/share/vboot/bin/make_dev_ssd --remove_rootfs_verification
sudo mount -o remount,rw /
sudo mount -o remount,exec /mnt/stateful_partition
You will also need to re-run these commands after every reboot, so you may want to stick them in a shell script.
I'd like to get a full build system on it, but I'm not sure if that's possible yet.
I'm also working on getting java and acrobat support into the browser.