Le wallet semux demande l'installation de la machine java pour se lancer.

sudo apt-get update
sudo apt-get install default-jre
wget https://github.com/semuxproject/semux/releases/download/v1.0.0-rc.5/semux-linux-1.0.0-rc.5.tar.gz
tar xzvf semux-linux-1.0.0-rc.5.tar.gz
cd semux-linux-1.0.0-rc.5
sh semux-gui.sh

Ressources:
https://github.com/semuxproject/semux/releases
https://semux.info
https://www.semux.org
http://semuxchain.info
https://semux.info/richlist

source:
http://www.shareannonce.com/david/tutorial/29f