Worked on the immich-app/immich repository to enhance the stability and reliability of OCR integration, focusing on compatibility with RapidOCR v3.8.1. Addressed a critical bug by restoring the required model_root_dir parameter in OcrOptions, which resolved a TypeError and ensured the OCR pipeline functioned correctly for users. Updated unit tests to reflect schema changes introduced by the new OCR version, maintaining test coverage and reliability. Additionally, reverted the removal of an unused cache_dir parameter in TextRecognizer to preserve backward compatibility. Utilized Python, machine learning, and software debugging skills to deliver a smoother upgrade path and reduce user-facing issues.