Very sad to see that kennethjiang will be discontinuing support for this plugin. Although he states this is because the new Cura release has great support and renders this plugin obsolete...I disagree. I have been using this, albeit "outdated", plugin with great success and ease. The convenience of having a built in slicer (RPi 3) is understated.
It would be great to see someone from the community continue the development of this plugin!