Discovering problems in a codebase you struggled with just yesterday is incredibly satisfying. Today, I dedicated over 6 hours to thoroughly examine @zksync.lens code. With each passing moment, my familiarity with the codebase increased, and I found myself comprehending aspects that used to be quite frustrating not too long ago. Many participants had questions about the contest's duration due to the massive codebase, which has over 30,000 lines (!!!). This contrasts with other contests. Additionally, the contest combined four different parts of the system, written in both #Solidity and #Rust. While questions were raised, the dates were already set, so our best approach is effective time management and concentrating on the code sections where you feel most confident.