sudo apt install apt-transport-https

curl -fsSL https://repo.skype.com/data/SKYPE-GPG-KEY | sudo gpg --dearmor -o /etc/apt/trusted.gpg.d/skype.gpg

echo "deb [arch=$(dpkg --print-architecture)] https://deb.rug.nl/ppa/mirror/repo.skype.com/deb stable main" \
| sudo tee -a /etc/apt/sources.list.d/skype-good.list > /dev/null

sudo apt update

sudo apt install skypeforlinux