Worked on the CommanderStorm/martin repository to enhance safety and maintainability in Rust-based workflows. Delivered two features: enforcing compile-time safety in the martin-tile-utils crate by forbidding unsafe code, and streamlining continuous integration by introducing a dedicated justfile recipe for package testing. These changes leveraged Rust, Bash scripting, and YAML to reduce the risk of defects and simplify CI configurations. The approach ensured downstream crates inherit strict safety guarantees without affecting runtime performance, while aligning new tooling with existing justfile-based processes. This work improved code safety, maintainability, and consistency across the CI pipeline, supporting safe-by-default development practices.