I’ve just a blank sdcard and flashed the rasbian stretch image on…
this is what was needed to get it running:
sudo apt-get install mono-complete -y
wget https://github.com/Bounz/HomeGenie-BE/releases/download/V1.1.14/homegenie_1.1.14_all.deb
sudo dpkg -i homegenie_1.1.14_all.deb
Will update as I go on