Worked on the starkware-libs/starkware-starknet-utils repository to enhance development environment consistency by introducing a .tool-versions file. This addition pinned specific versions of key development tools, including scarb and starknet-foundry, to ensure reproducible builds and reduce environment drift across contributors’ machines. The approach leveraged DevOps practices and environment management techniques, focusing on cross-environment reproducibility and maintainable developer experience. By standardizing tool versions, the update improved onboarding processes and increased the reliability of continuous integration workflows. No bug fixes were addressed during this period, with the primary focus on infrastructure improvements using asdf-compatible version pinning and related technologies.