VirtualBox NAT
Host: 127.0.0.1
Port: 2222
Guest: VM IP (10.0.2.15)
Port: 22

Remote port forwarding over SSH
ssh localhost -p2222 -lvm -R 52698:localhost:52698

On Host, in VSCode install "Remote VSCode"

In VM install rmate as rcode

In VM install nautilus-actions and start nautilus-actions-config-tool

Create new command with /usr/local/bin/rcode and parameter %f