Worked on hardening the machine learning stack for the immich-app/immich repository by addressing a critical permissions issue in the Dockerfile. Focused on containerization and DevOps practices, the developer resolved access errors related to the librknnrt library by applying appropriate chmod commands during the Docker image build process. This fix ensured that the library had correct access rights, preventing both runtime and build-time failures in the machine learning workflow. The solution was validated through successful continuous integration builds and runs, demonstrating attention to deployment reliability. The work primarily involved Dockerfile scripting and leveraged skills in machine learning infrastructure and container management.