If you have a machine at her place that is on most of the time you can have tailscale on that device and then make it ssh into itself with ssh portforwarding on!
Edit: You can also selfhost headscale and do the same as the comment below said
If you have a machine at her place that is on most of the time you can have tailscale on that device and then make it ssh into itself with ssh portforwarding on!
Edit: You can also selfhost headscale and do the same as the comment below said