GNU Guix 1.0 is out!
https://www.gnu.org/software/guix/blog/2019/gnu-guix-1.0.0-released/
Proud to have been a part of the project since 2013. I haven't been active in awhile, but I have contributed a lot of packages, a Linux container implementation, a build system for programs written in Ruby, importer tools for PyPI and RubyGems, the 'guix environment' and 'guix publish' tools, and probably some small stuff I've forgotten.