Librevault
Peer-to-peer, decentralized and open-source file sync
...It automatically syncs files across devices without relying on cloud servers, ensuring full user control and privacy. Librevault uses local discovery and encryption to keep data secure and accessible only to trusted peers. Its cross-platform support and real-time synchronization capabilities make it suitable for both personal and collaborative use. Though still in early development stages, Librevault represents a privacy-focused vision for file sharing and synchronization.