Dear
I NEED HELP! I have tried several times to install Screeny OSE from my MacBook => Balena Etcher => Raspberry Pi 3B+, but I can’t!
Is there someone who can explain to me how to do this exactly? I get Screenly on my screen, followed by the colored square and then back to the screen with the raspberrys. And this keeps running… But I can’t get any further than this… Please help me! (It’s urgent…)
Thank you very, very, very much in advance!
Mathieu
P.S. I also wanna do it with Balena, but I don’t know how… 
Hello,
Using Etcher, use this image on the SD card:
http://downloads.raspberrypi.org/raspbian_lite/images/raspbian_lite-2019-04-09/2019-04-08-raspbian-stretch-lite.zip
(if you need to control it via SSH: https://github.com/Screenly/screenly-ose/wiki#enabling-ssh)
Then, when you are on logged on to the raspberry pi, with user pi and password raspberry, and the RPi has internet connectivity by configuring it via typing in console sudo raspi-config and setting up the timezone and all of that, type this to install screenly-ose master image:
bash <(curl -sL https://www.screenly.io/install-ose.sh)
press enter and follow the instructions.