France Aiming to Replace Zoom, Google Meet, Microsoft Teams, etc
Especially when it comes to long-running projects like what's attempted here, Python, even being a technology from yesteryear, isn't even suited for problems of yesteryear.
With projects like these maintainability is your #1 concern, so referential transparency (greatly reinforced by laziness-by-default) and purity are indispensable and irreplaceable here.
The next concern is adequate performance, and Haskell has that in heaps.
The final concern is the capability to find programmers, and there are heaps of those in Haskell land.
So what happens to the 500,000+ users when Trump tells MS to nuke the repo/infra ?
And also, this means devs/contributors have to give their data to MS.
Since the whole point of the project is sovereignty, it should have started with setting up their own gitea/gitlab/etc. instances and domains.