I decided to turn the previous Issue into a discussion as I find it more appropriate to use this channel for this type of subject.
That said, I've found yet another good candidate for a distributed protocol and am experimenting with new ideas in the old eigr-labs/steinadler repository. It is about using the Nats broker as a basis for a distributed protocol. Nats has many interesting features mainly in the areas of security and topology and therefore I think it is a good candidate. However, an integration with it through Steinadler would result in something more invasive and would require more changes in the Spawn code base since Steinadler is a higher level abstraction than Erlang Distributed or quic_dist.
One of the benefits of using Steinadler via Nats is that in theory we would be able to support really large clusters without the cost of a mesh network where all nodes involved need to be directly connected to each other. Each Node would only need a single direct connection to the Nats cluster, which reduces the number of necessary connections and obviously increases the number of possible nodes to be connected. Depending on the implementation of Steinadler, it would also reduce the overhead in registering the processes and consequently improve the lookup of the processes.