We will still keep providing our regular disk images (and installation instructions), but using NOOBS to install Screenly OSE simplifies the process a lot for our users.
Screenly OSE being installed in NOOBS.
Going forward, we will likely discontinue our BerryBoot images in favor of the new NOOBS image. With the next release around the corner, we will try to ship NOOBS image as soon as we ship the regular disk images.
You can download NOOBS from here. In order to install Screenly OSE, you need to have a functioning internet connection inside NOOBS.
(Please note that Screenly Pro is not available through NOOBS.)