this gist is out of date and remains here only for reference
This is just a modification of this reddit to minimize copying and pasting, make it less interactive, and to allow creation of a username of your choice instead of the default google email address.
# #How to run Ubuntu with full Chrome OS Integration
# Here's a post that shows in detail how to make the default penguin container run Ubuntu instead of Debian:
# [Introduction to Crostini - Part 3: Using Ubuntu by default](https://linuxiumcomau.blogspot.com/2018/08/introduction-to-crostini-part-3-using.html)