nitpick: /net is not a file server but a mount point for network file servers such as ether(3), ip(3), and tls(3).

There is an email on the 9fans mailing list alluding to the fact that this might be an actual project. https://marc.info/?l=9fans&m=174352993304181&w=2

The ftp site does work but tailscaled is compiled for 386 and I dont have a 386 kernel running atm. Building from source source is the better way to go on 9.

If this is real and works, they have a new customer.