These arrows already exist! The France one is the English tunnel and the Ireland one is there because they need to make Ireland feel like one island. The uk dont have much control over how well they connect to their border. I think the uk would have benefited from this plan as they seem to be having problems with trains
So a reverse proxy is a way to manage subdomains? I read somewhere that it allows multiple different services to be hosted on the same port and I think I know that that is probably a lie.
More complex but you have less control over what is produced, it’s more about getting workers to their jobs and transporting goods efficiently than making efficient production lines.