Got a preview of the upcoming Quarto 2 collaborative editor a few months ago, and it's genuinely very very cool and huge step toward practical collaborative code-driven manuscript workflows. May become my default for solo-ish projects or where collaborators are at least a little code savvy.
The problem is well-recognized. The upcoming Quarto 2.0 will introduce a collaborative editor on the web as an attempted solution. Not sure how viable this will be, but certainly an interesting development! opensource.posit.co/blog/2026-04...