Interesting solution. Also as alternative to a VPN. A VPN is often just too complex to set up, and also requires some hardware in your local network; though of

Interesting solution. Also as alternative to a VPN. A VPN is often just too complex to set up, and also requires some hardware in your local network; though often your router will have that already. Off course a Rpi can act as VPN gateway/server. But solving it by flipping the "servers" around and running the "appserver" in your network then tunneling it to remote seems a really neat hack to avoid going into VPN hell.