Have a query .Installed N8N locally on my machine using NPN. I am not able to get how we can change the local host environment variable to use tunnel variable . I tried running NPX N8N Start -- tunnel but the URL that comes up gives 404 error. Can you please advise how we can change the environment variable using. Since this is a local installation I am not able to figure out the .env file. Also are there some cmd prompt query by which we can update the local host path

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