This feature is still in beta. Use at your own risk. Soon there will be a staging component containing snapshots, leaving the main component for releases.
This is a guide for using the packages provided by us at Magnolia. For a guide to creating your own .deb and .rpm packages for Magnolia please see the Creating Debian and Redhat Packages guide.
Adding the repository and installing the community edition is as easy as:
curl https://packages.magnolia-cms.com/debian/apt.key | sudo apt-key add -
echo "deb http://debian.magnolia-cms.com/debian jessie main" | sudo tee /etc/apt/sources.list.d/magnolia.list
sudo apt-get update
sudo apt-get install magnolia-ce-author magnolia-ce-public
Still in development.