Developed and integrated CI artifact caching for the tailscale/github-action repository, targeting both Linux and Windows environments to accelerate continuous integration workflows. The solution incorporated dynamic SHA-256 checksum verification, ensuring the integrity of cached Tailscale artifacts by selecting the appropriate checksum based on version and architecture. Leveraging Bash and shell scripting within GitHub Actions, the implementation stabilized caching paths and hardened checksum logic, resulting in faster CI runs and a higher cache hit rate. No major bugs were reported during this period, reflecting a focus on maintainable code practices and robust cross-OS automation using CI/CD and caching technologies.