I hereby propose the #FediBox as an aspirational target for a decentralized Internet.
It's a box, like a home router. It is a robust, low cost, low consumption device that requires power and a domestic grade network connection.
Plug it in and, with trivial configuration, you are running your own #fediverse instance.
Focus is ease of use, not features. It should be possible to moderately expand its capacity.
It should be operational for at least 10 years, so it can be handed down for free.