Thanks for your work here. I did run into an issue though. I was previously on 0.1.0 and upgraded to 0.3.0 this afternoon. After the upgrade I no longer have working png images.
It seems like PhantomJS is missing now. Rendered images that were previously working on my RPi3 are dead now.
Rendering Failed - PhantomJS isn’t included in arm build per default
Hopefully that is an easy fix. Thanks.