Signal messenger is an end to end encrypted application also available on Android, iPhone, Windows and Mac. It’s basic functions are encrypted text and video messaging which it does very well and very easily compared to many other applications. Signal is primarily tied to a cell phone number so it will need to be installed on a phone before it can be used on Kubuntu.
To install Signal on Kubuntu 20.04 open Konsole and type,
curl -s https://updates.signal.org/desktop/apt/keys.asc | sudo apt-key add - echo "deb [arch=amd64] https://updates.signal.org/desktop/apt xenial main" | sudo tee -a /etc/apt/sources.list.d/signal-xenial.list sudo apt update && sudo apt install signal-desktop
This will install the key for Signal, add the application repository and finally update and install the program.
After installation you can find to by searching in the Applications menu or under Applications/Internet.
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