crouton
Used by 3 peoplegithub.com ↗

“Chromebook: I do not use crouton.”
Jessie Frazelle Interview, Software engineer (Google, Docker) · via Uses This 
“I however recently started to experiment with crouton, which allows me install a chrooted Ubuntu (or other variants of Linux) on a Chromebook and I can use GnuCash there.”
Junio C Hamano Interview, Developer (git) · via Uses This 
“It's really easy to do using crouton.”
Darius Kazemi Interview, Internet artist (Tiny Subversions) · via Uses This