zchunk, zsync, and casync spring to mind. zchunk and zsync require support for range queries but casync splits the chunks into multiple files. https://github.co

zchunk, zsync, and casync spring to mind. zchunk and zsync require support for range queries but casync splits the chunks into multiple files. https://github.com/zchunk/zchunk https://github.com/zchunk/zchunk http://zsync.moria.org.uk/ http://zsync.moria.org.uk/ https://github.com/systemd/casync https://github.com/systemd/casync