Looks like Blitz Wallet has a new website (and a new URL?)
In case you're not familiar, Blitz Wallet is one of the Spark spawn:
And while we know that Spark has some limitations when it comes to claims of self custody (#1020261), I think Blitz may have done a better job integrating Spark (#1251232)
Days where CoinOS has troubles (#1416930) may nudge one in a new direction...
is this similar to rizful, with 0-conf private channels opened from a central node?
I don't believe so. They use Spark. So you don't have a channel. They say it is self-custodial because Spark has a guarantee that you have unilateral exit to the chain -- but if you have 100 sats, you clearly cannot do anything on chain...so I would say for small balances it's pretty much the same as custodial.
Lightning makes it even more complicated. As far as I can tell, you do some kind of swap with whoever is running their lightning gateway (which I assume is Spark or the Spark entity?) So at best, it's like Boltz, and you have similar trust assumptions to that. At worst, you pretty much just have to trust whoever's running Spark's lightning node with your sats.
I need to learn more about this, so perhaps someone else who knows more can correct me.
yeah, also want to look deeper
https://bitcoinmagazine.com/technical/spark-explained-like-youre-five
redesign. thought you said red sign, as in red flag 🤣
oh man, i've been awful with typos lately.
Blitz made it great for receiving payments without being online.