anything built with or on top of payment channels needs to be written off completely. lightning is a scam to get you to tolerate custodians more and more. custodial scaling goes in the trash can. bankers get the rope. if you don't do this, you don't have a revolution, you have a stupid toy that will just burn your fingers for the thousandth time. please stop this nonsense now.
I want to like some things about cashu, but the fact that it requires total trust is a show-stopper. there is a way to rebuild cashu and make it behave more like a zk-rollup. it would be completely trustless. I think that would be really cool. it requires another soft fork.
https://hackmd.io/@abdelhamid/cashu-starks
UTXO sharing solutions are better than payment channel solutions because they have a better non-custodial UX and they do a better job of enabling more people to be sovereign at the same time. anything like rollups or drivechains. ark might even work. I have seen people call ark a pseudo-rollup. none of these solutions are really worth pursuing without a soft-fork. there are several ways to enable better UTXO sharing.
https://en.bitcoin.it/wiki/Covenants_support
"there are no solutions, only tradeoffs" is a lie written in bumper sticker language by parasites expecting me to tolerate banking and middlemen and to hand over my sovereignty an inch at a time. these parasites are the same people who deliberately try to sabotage discussion of anything that would enable UTXO sharing solutions. adam back has been observed trying to do this in his own free time.