Install Sublime on Debian

Using apt
Install the GPG key:

wget -qO - https://download.sublimetext.com/sublimehq-pub.gpg | sudo apt-key add -

Ensure apt is set up to work with https sources:

apt-get install apt-transport-https

Select the channel that you want to use:

Stable

echo "deb https://download.sublimetext.com/ apt/stable/" | tee /etc/apt/sources.list.d/sublime-text.list

Dev

echo "deb https://download.sublimetext.com/ apt/dev/" | tee /etc/apt/sources.list.d/sublime-text.list
Update apt sources and install Sublime Text

 apt-get update
 apt-get install sublime-text