There's a really useful report surveying all of the numerous efforts
that are underway in open-source publishing platforms and how they fit
together that's been released by MIT Press as part of a grant from the
Andrew W. Mellon Foundation. The report is  called "Mind the Gap: A
Landscape Analysis of Open Source Publishing Tools and Platforms" and
it's available at

https://mindthegap.pubpub.org

The report announcement is at

https://mitpress.mit.edu/blog/mind-the-gap


Clifford Lynch
Director, CNI