Authy is a Two-Factor-Authentication software focused on security. Unfortunately Authy is only supported as a snap package in Linux. But everybody hates snap. So there is an alternate way to install authy on debian based linux distributions.
First clone the repo
git clone 'https://mpr.makedeb.org/authy'
Go to the directory
bash -ci "$(wget -qO - 'https://shlink.makedeb.org/install')"
If the last step fails:-
sudo dpkg -i *.deb