JoplinJoplin - an open source note taking and to-do application with synchronization capabilities for Windows, macOS, Linux, Android and iOS. Forum: https://discourse.joplinapp.org/
dvbcss-synctimingMeasuring synchronisation timing accuracy for DVB Compainion Screen Synchronisation TVs and Companions
JFileSync3File Syncing with encryption and compression (partly) compatible with encfs / boxcryptor (classic) volumes for local folders and WebDAV backends. Based on JFileSync - hence the name.
syncThe main repository for P2P-Sync
timing-objectAn implementation of the timing object specification.