Been giving some thought to Arc's hybrid custody model. This model operates on the premise that you maintain custody of your funds unless you go offline for x weeks or longer, at which point your funds can be reclaimed or swept by the other party involved.
While it's unlikely that most nodes would consent to establishing channels that propose unilateral, fund-sweeping arrangements, such channels could be beneficial for close-knit relationships like family and friends. This is particularly true in situations where one party is more likely to lose their device or private keys than the other. In these cases, the more tech-savvy, reliable or attuned party can sweep and reclaim the funds that their family member or friend would have otherwise lost. With such an arrangement, even grandma could use the lightning network without worrying about losing access to her funds if she misplaces the device or forgets her seed.
To implement this kind of arrangement in the Lightning Network, we would need to define a new ty