The sync-db-os plugin streamlines file synchronization in Obsidian by automatically uploading local images to specified object storage and updating their links. It also facilitates the resolution of conflicts between notes edited on multiple devices and supports uploading large files like PDFs while storing only their hash values in the database. Designed to optimize database usage, the plugin integrates with MongoDB and CouchDB, and supports major object storage providers such as Tencent Cloud and Alibaba Cloud. Key features include automatic image uploads, manual conflict resolution, and efficient large file management.