Developed a standardized DevContainer-based development environment for the OpenSiFli/SiFli-SDK repository, focusing on streamlining onboarding and ensuring consistency across developer machines. The solution leveraged Dockerfile and Bash to automate dependency installation, user creation, and toolchain setup, while also introducing a motd file for a welcoming message and updating export.sh for environment variable management. This approach established a reproducible local development workflow and laid the groundwork for smoother CI/CD integration. By addressing environment setup challenges, the work reduced onboarding time and improved cross-machine reliability, demonstrating practical application of containerization, DevOps practices, and shell scripting within a collaborative development context.