I like the feature-as-app paradigm, but the article says nothing about the underlying API. I have used a CMS the last couple of years at work, where documents a

I like the feature-as-app paradigm, but the article says nothing about the underlying API. I have used a CMS the last couple of years at work, where documents are stored as JSON files on the server using WebDAV protocol, which off course is totally REST based. Access control is done using the PROPPATCH verb. The CMS is named Vortex, developed at the University of Oslo and has an open sourced license. Too mee this API seems to function better than the usual custom made REST based API.