i do that already. I volunteer to host an official one. I run a ISP Backbone across Europe and Africa with multiple 100G links so Im ready for a lot of downloads :-).
I usually build into /usr/local for my own use. Im not sure how the old packages where built. But i would be ready to rebuild the "official way with clang /ARC support etc. My personal use is mainly gnustep-base for my ulib project as my apps dont need a desktop gui. But i usually build / package gui/back as well.
Debian12 on amd64 and arm64 is what I build regularly. arm32bit for Raspberry Pi as well but thats on Debian 10 (and takes forever to build). Risc-V i tried but failed due to missing clang (would have to build that from source which takes forever). But hopefully we will get there eventually.
So once we decide the parameters and build structure we want, we can make it happen.