Assume I've gone off on a rant about the new improved ways of doing things and skip it to save time. Ubuntu's improvements is one the reasons I stay away from Ubuntu (you may not have a choice).
Anyways, from the quick scan of that link it appears that they are explaining devices with snap. Is this like containerization or a security sandbox around node-red? My brain is getting muddled around Docker, Kubernetes and virtualization that I no longer know what's real. 
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