3.5 Years, 500k Lines of Go (Part 1) Mar 24, 2017 Series: 3.5 Years of Go January 31st 2017 was my last day at Canonical, after working for 3.5 years on what is one of the largest open source projects written in Go - Juju. As of this writing, the main repo for Juju, http://github.com/juju/juju, is 3542 files, with 540,000 lines of Go code (not included in that number is 65,000 lines of comments).