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.
Grist https://www.getgrist.com/
A write-up of how the French gov uses it https://interoperable-europe.ec.europa.eu/collection/open-so...
Does grist have forms?
In case of failure, just copy-over the old file from yesterday - such simple solutions are pure gold for SME without any big IT department