I think there are quite some misconceptions about F-Droid in the comments :

- you can be your own F-Droid server

In fact it's a basic static HTTP(S) server that is generated with the list of .apk and meta-data so it rely doesn't require much.

I think what is concerning to people is that the most popular INSTANCE of F-Droid, the one that is by default when one downloads the F-Droid CLIENT, is "centralized" but again that's a misconception. It's only popular, it's not really central to F-Droid itself. Adding another repository in the F-Droid parlance is just a simple option of changing or adding a URL to more instances.

That being said if anybody here would like to volunteer to be provider a fallback to the build system to that popular instance, I imagine the F-Droid team would welcome that with open arms.