Based on a move by Dan Buck called Swirly,

A precise shuffle where two equal packets are woven together card-for-card, creating a perfectly interlaced deck. In cardistry, faro is often used as a technique for setting up or enabling moves, especially displays, weaves, and packet-based sequences.

A shuffle where two packets are held separately and their inner corners are released so the cards interlace together, usually followed by pushing or bridging the packets into one deck.