I've only just seen this, quite why I wasn't already following Breez I don't know, but anyway, this looks and works great. Easy address set up feature too. I like that. I've now got mattyb@breez.fun and it works a treat- seen in the comments it basically uses liquid, so what's happening behind the scenes?

Is this lightning to lightning on liquid, or submarine swaps between lightning and liquid? Is there any of the benefits of liquids privacy feature?