Celeste is a GUI file synchronization client that can connect to virtually any cloud provider.
- Backed by rclone, giving you a reliable and battle-tested way to sync your files anywhere
- Written with GTK4 and Libadwaita, giving Celeste a native look and feel on your desktop
- Written in Rust, making Celeste blazingly fast to use
rclone added support for Proton Drive very recently. I haven't tried it yet, but am interested to see how well it works.