Get Raspbian Buster: https://downloads.raspberrypi.org/raspbian/images/raspbian-2020-02-07/
(Tested with 2020-02-05 Release)
Unzip and write the image to a micro-SD card
Boot your Raspberry Pi from the SD card and connect to wifi
(It may show a blue screen with "Resized root filesystem, rebooting in 5 seconds" on the first bootup. This is okay.)
Go through the setup process. You may skip the software updates since they are convered in the install script.
Then, in a terminal, enter:
`sudo git clone https://github.com/a-v-e-s/sagan-control-daemon /opt/sagan-control-daemon`
`cd /opt/sagan-control-daemon`
`sudo bash install.sh`
Restart the Pi
That's it!