Well, I self-host, but the main barrier I have against providing those services for others is availability: I am unable to guarantee 100% uptime. Federation is

Well, I self-host, but the main barrier I have against providing those services for others is availability: I am unable to guarantee 100% uptime. Federation is a great thing, as it distributes uptime over the network. Then comes peer-to-peer (see peertube) to make peak load easier to bear. But we would need a few easy ways to poll resources of a few self-hosting devices to provide high availability. This probably means a completely decentralized protocol, or techniques such as hosting DNS on the same machine as the service, in multiple place, since it looks like the Internet was designed with a federated architecture in mind, not a distributed one.