I have created a diagram to visualize the network topologies. As you can see both networks are small and simple.
The remote site is drawn on the left and my home network is drawn on the right.
The A2 Switch in my home network is a MikroTik hAP ac² with the WiFi disabled.
I am considering to replace the switch [B2] on the remote site with a new MikroTik hAP ac² [?].
Then the new MikroTik hAP ac² [?] at the remote site would need to be configured in such a way that it can connect to my home network trough a VPN tunnel.
I am not sure what the best approach is to wire and configure both networks but I would like to be able to use hostnames in my backup scripting instead of ip-addresses that might change.