[binyang_qiu]

Cool. After reading your README, the "post-part" hook is the most interesting part for me. Chunk-level hooks make it easier to plug into things like rclone or other workflows. As you mentioned, the single .rapel-state.json file tracks all chunk metadata. Does that state also pin the origin file identity while resuming, so it can detect if the remote file changed between sessions?

[autorun]

Thanks for pointing it out, README is outdated, .rapel-state.json is not being used anymore, as the current state is now calculated from the chunk files downloaded. It doesn't detect remote file changes.