Here is the thread I asked about this issue but in the wrong place for clarity ostreedev/ostree#3561

How viable would a p2p discovery system be as a possible alternative source to save bandwidth.
A client asked me to moved his whole office to Linux and i would like to move them to a ublue image but the have over 20 pcs. problem is that every week 15 mins after the system is turned on if an update is out its then pulled. I have no problem with that as updates are always offline. My problem is that 20 pcs will do that separately and will pull the same images from the repo.

So my question is the following. Would a system that discovers local sources to pull available images and hash check them be viable?
I am not talking about middleware repo or something I am asking about an automatic system that could be included in every installation of the ostree system with the ability to announce itself as a possible provider.

ofc this would work only under lan and would easily be enabled when wanted by admins. Off by default for obvious reason.