Home page for the entire suite (in French) with some screenshots: https://lasuite.numerique.gouv.fr/
Code bases are on GitHub and they use English there: https://github.com/suitenumerique/
Dev handbook (in English): https://suitenumerique.gitbook.io/handbook
Not French and I can't say I personally tried deploying any of them, but I've been admiring their efforts from afar for a while now.
It's really good. The typing experience "feels" right and the collaboration features work. I haven't played with the other solutions yet but I'm very excited if they are up to the same standard.
I deployed it with docker and it was relatively smooth. I had to play a bit with the OIDC but I'm pretty sure that was more a me issue than anything.