Debian - Install Sublime Text Editor

# Install the key to trust packages from sublime
wget -qO - https://download.sublimetext.com/sublimehq-pub.gpg | sudo apt-key add -

# Ensure apt is set up to work with https sources: 
sudo apt-get install apt-transport-https

# Add the stable source
echo "deb https://download.sublimetext.com/ apt/stable/" | \
sudo tee /etc/apt/sources.list.d/sublime-text.list

# Install sublime
sudo apt-get update && \
sudo apt-get install sublime-text -y

References

• Sublime Text Documentation - Linux Package Manager Repositories