I’m amazed that some things just work: I’m currently editing a remote file in Komodo Edit (on Windows) via SFTP, to a computer inside another network via a SSH tunnel (as it’s not directly accessible from outside), which has a sshfs (fuse) mount to another computer (on the same network though).

Still, I do wish for a free alternative to SftpDrive, that said, maybe I should just bite the bullet and run a Samba-sshfs virtual machine