Over a two-month period, contributed targeted improvements to blockchain and smart contract tooling with a focus on safety and reliability. In the foundry-rs/foundry repository, introduced explicit safety labeling for cheatcode functions, marking copyStorage and setArbitraryStorage as unsafe to guide developers toward safer contract development practices using Rust. Subsequently, addressed test reliability in the hyperledger/besu repository by stabilizing the SECP256R1 acceptance test, optimizing setup routines, and refining peer connection handling. Leveraged skills in CI/CD, Java, and Rust to reduce test flakiness and accelerate feedback cycles, resulting in more predictable releases and improved maintainability across both codebases.