Whew... The CLN team is definitely not taking too much care of it (not sure if it's even tested or if there are any public liquid lightning nodes), nor does liquid block space really require it plus work is being done to keep 0-conf viable on liquid. So honestly I wouldn't expect it any time soon. It would need a real use case for it to happen. Like liquid itself: >100 sats/vbyte on mainchain.
It would increase privacy by taking even more transactions offchain and coupled with confidential transactions this would be an even bigger privacy boost. So it would be great to see this.
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