For the merger, who is being folded into whom? RXN

For the merger, who is being folded into whom? RXNB to become part of FITX or FITX folded into RXNB and they maybe use that as a way to reverse split shares without actually needing to do that with FITX? I am speculating to no end on that one. Wasn't sure if it would be RXNB being taken public, absorb FITX, RXNB has a FAR smaller share count, and FITX holders get say 1 share for every 100 shares???

As I said, the last part was speculative, but the question stands, how would the merger work, who is merging with who? I THINK it is RXNB merging with FTX, but nothing concrete found.