To get into the Raspberry Configuration you have to type “sudo raspi-config”
For Screenly you can copy paste this line:
bash <(curl -sL https://www.screenly.io/install-ose.sh)
When this line is entered a new “Gui” opens up, you can accept everything on it and screenly should be installed in about 20 minutes.
After that, reboot your Raspi, and screenly will show you your ip on the screen .
Open your web-browser, enter the IP shown on the screen and the Screenly Website should open up.
In there you can then add your Websites, Videos or Images.