Someone in the group has already shared this, but it didn’t get much attention. I really think it’s a great tool, so I’m sharing it again.
No server or Docker required, and it costs nothing—completely free.
I’ve personally tested it and successfully set it up. Syncing between Cloudflare R2, Google Drive, OneDrive, Mypikpak, Mega, and Quark was successful. I haven’t tested other cloud drives because I don’t have them.
As usual, fork it first, then follow the official README and everything should go smoothly.