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Re:The Lightning Network: Turning Bitcoin into Money by ooaa on Wednesday July 13, 2022 @07:42AM (#32081325)
According to this website it is possible to batch multiple channel openings in one transcation. They refere to a batch transaction containing 13 channel openings but I don't know where the limitations of this approach are.

http://satbase.org/bos-open/

Re:The Lightning Network: Turning Bitcoin into Money by once_inc on Friday July 15, 2022 @03:12AM (#32105538)
With Schnorr signature aggregation, you can combine an unlimited number of signatures, but Bitcoin has a maximum of 4MB witness data, so there is certainly a cap.