[Trisquel-users] Re : Impossible to install nitrokey-app through PPA

[lcerf]

There is no "nitrokey-app" package for Ubuntu 16.04 Xenial Xerus in  
http://ppa.launchpad.net/nitrokey/nitrokey/ubuntu/pool/main/n/nitrokey-app/

I would try Ubuntu 18.04 Bionic Beaver's packages (there is little risk here:  
the PPA only provides additional packages; it does not upgrade existing  
ones):
$ sudo sed -i 's/xenial/bionic/'  
/etc/apt/sources.list.d/nitrokey-ubuntu-nitrokey-xenial.list
$ sudo apt update && sudo apt install nitrokey-app