@Nathan you can find a [code sample here](https://github.com/serilog/serilog-settings-configuration/blob/dev/sample/Sample)

Appsettings should work with the following:

{
  "Serilog": {
    "WriteTo": [
      { "Name": "File", "Args": { "path": "log-{Date}.txt", "rollingInterval": "Day" } }
    ]
  }
}