There is a new application available for Sparkers: 64Gram
What is 64Gram?
64Gram is an unofficial Telegram Desktop. The source code is published under GPLv3 with OpenSSL exception.
Installation (Sparky 7 & 8 amd64):
sudo apt update
sudo apt install 64gram
License: GNU AGPL 3.0
Web: github.com/TDesktop-x64/tdesktop