A draft design for a multi-rollup system

I long had this idea about a multi-rollup design that aims to solve some of the problems rollups face today. For about a year and a half I though someone would build it and never really dug into it or considered the specifics of such a system. It’s been a while now and it seems that there isn’t a design that solves the problems I will describe in this post. So, I will try to flesh out as much details as I can about the system in the hope that someone takes inspiration from this or even existing rollups borrow a few ideas. Introduction One of the problems rollups face today is user experience . In many designs, rollups come as isolate ecosystems with very different traits. There are some ways to interoperate but with multiple heterogeneous systems wiring them up it’s quite a challenge. Moreover, getting users to sign up for all these rollups is hard. They have to learn about each one of them individually, assess the relevant smart contracts, connect their wallet to a new RPC endpoint, bridge assets to the chain etc. What if there was a rollup design that can provide a unified experience across the rollups? How would it look like? I was asking this question to myself and…

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