Tailscale VPN
Install
After creating a tailscale account, follow the Raspberry Pi Bullseye download instructions
Your pi now has a unique ip address that can be accessed by all devices in your private tailscale VPN.
This machine can also be accessed by its hostname through Tailscale's private DNS
Enable Subnets
Raspberry Pi
'Advertise routes' to provide access to each appleshare device (the raspberry pi afpd server and each mac) on this network and 'accept routes' to forward requests through the tailscale VPN to other remote devices
sudo tailscale up --advertise-routes=192.168.0.241/32,192.168.0.250/32 --accept-routes
Tailscale.com account
Select "Edit route settings" from the '3dots' menu on the right column and enable Subnet routes for this device
Mac Appleshare
The above "enable subnet" sequence was also done for the second RaSCSI "jaypi" device at 192.168.3.241. From the Chooser, go ahead and open this jaypi appleshare server
Tailscale sharing option
You can even share this machine with other Tailscale customers. There may be security concerns at exposing your network to others so be careful.