It stays dark for me too. Nothing happened

Hi
I've been using Ubuntu phone on Nexus 5 for almost 20 months
Few days ago I've heard about
http://news.softpedia.com/news/nexus-5-now-a-fully-working-ubuntu-phone-fairphone-2-gets-voice-call-support-511448.shtml
I got really excited and tried to install Libertine: https://wiki.ubuntu.com/Touch/Libertine
After few problems with installing core packages I can download programs like firefox or GIMP, but none of them is really working. They are showing in "Desktop Apps" scope, but when I try to launch any of them, they show an icon for a short time and then close itself.
Did anybody succesfully used Desktop apps on Nexus 5, and now, how to make it work?
Sorry for my english