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KOreader Sync Server

This is a KOreader sync server, implemented in Rust. It uses the crates axum, redis, serde and serde_json.


  • Rust toolchain (≥ 1.63) for compilation
  • A running Redis server
  • Nginx (or Apache) webserver as a reverse proxy, since kosyncrs only listens locally and uses HTTP.


Just compile it with cargo build --release. You can then copy the executable for example to /usr/local/bin/. If you want to start the service automatically, you can adapt the example systemd file for your needs. You can also use nginx as a reverse proxy, so that the sync server listens on port 443.


  • Test, if it really works, and if it works reliably. Feedback is very welcome!
  • Make it more configurable