LiveTikZ is a Qt application with KDE dependencies for the editor component. LiveTikZ can either be installed using the PPA, [provided Debian packages](https://github.com/misc0110/LiveTikZ/tree/master/dist) or compiled from source.

First, add the public key of the PPA and the PPA URL to the package manager, and update the package manager

curl -s "https://misc0110.github.io/ppa/KEY.gpg" | sudo apt-key add -

sudo curl -s -o /etc/apt/sources.list.d/misc0110.list "https://misc0110.github.io/ppa/file.list"

sudo apt update

Then, simply install LiveTikZ

sudo apt install livetikz