When you say self-custodial bitcoin outside of the main chain, I think of Zeus, Mutiny, Blixt, etc. Would love to hear others’ opinions on these.
Do note that a force close on Mutiny might lead to your UTXO being swept to the LSP if you're not online enough. Or at least that could have been the case in the past. Not sure if this also applies to Zeus, but be careful describing their embedded nodes as self-custodial LN channels.
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