wget -q -O- https://packages.viqi.org/debian/viqi.asc| apt-key add -Add the follwoing to /etc/apt/sources.list.d/viqi.list where distribution is one of the following: stretch, xenial
deb https://packages.viqi.org/debianNow you can fetch ViQi packages such as:-viqi main
$ apt-get update $ apt-get install imgcnvetc.