btcpayserver/BTCPayServer/Properties/launchSettings.json

{
    "iisSettings": {
        "windowsAuthentication": false,
        "anonymousAuthentication": true,
        "iisExpress": {
            "applicationUrl": "http://localhost:14139/",
            "sslPort": 0
        }
    },
    "profiles": {
        "Default": {
            "commandName": "Project"
        },
        "Docker-Regtest": {
            "commandName": "Project",
            "launchBrowser": true,
            "environmentVariables": {
                "BTCPAY_BTCEXPLORERURL": "http://127.0.0.1:32838/",
                "BTCPAY_LTCEXPLORERURL": "http://127.0.0.1:32839/",
                "BTCPAY_NETWORK": "regtest",
                "ASPNETCORE_ENVIRONMENT": "Development",
                "BTCPAY_POSTGRES": "User ID=postgres;Host=127.0.0.1;Port=39372;Database=btcpayserver"
            },
            "applicationUrl": "http://localhost:14142/"
        }
    }
}