echo 'deb http://neilalexander.s3.eu-west-2.amazonaws.com/deb/ debian yggdrasil' | sudo tee /etc/apt/sources.list.d/yggdrasil.list
sudo apt-get update
```
**Note**: The repository also works over HTTPS - you will need to `sudo apt-get install apt-transport-https` and then edit the above URL so that it starts with `https://` instead of `http://` in `/etc/apt/sources.list.d/yggdrasil.list`.
Install Yggdrasil:
```
sudo apt-get install yggdrasil
```
Configuration will be generated automatically into `/etc/yggdrasil.conf` when
the package is installed, and the Yggdrasil service will automatically be
installed into `systemd`.
Enable and start the service after install/upgrade: