In March 2025, Alex Baltes enhanced escrow protection in the LayerZero-Labs/devtools repository by hardening the Aptos OFT adapter to prevent unauthorized withdrawals. Using the Move language and blockchain development expertise, Alex disowned the escrow object to restrict access, addressing a critical security concern in smart contract financial flows. The work included removing unused OApp compose modules, which improved code maintainability and reduced technical debt. To ensure reliability, Alex added a regression test that verifies escrow transfers fail as intended, increasing test coverage. This focused, in-depth contribution strengthened both the security and maintainability of the Aptos-based smart contract system.