Worked on stabilizing the Rust build system for the IrreducibleOSS/binius repository, focusing on enabling reliable compilation with stable Rust. Addressed build system and dependency management by updating CI configurations, removing nightly-only feature flags, and aligning dependencies across the workspace. Introduced the array-util crate to centralize shared utilities, reducing duplication and simplifying maintenance. These changes minimized CI churn and mitigated risks associated with Rust upgrades, supporting smoother onboarding and future development. Utilized Rust and CI/CD practices to ensure consistent builds, with a technical emphasis on dependency alignment and feature flag management for long-term stability and maintainability across the codebase.