All models within a workspace using the same credentials

I think I found a solution. I dont like the fact I have to make credentials visible in the code but it works in PBID and the app service.

let
    // Your username and password
    Username = BasicAuthUsername,
    Password = BasicAuthPassword,
    
    // Encode the credentials
    Credentials = Binary.ToText(Text.ToBinary(Username & ":" & Password), BinaryEncoding.Base64),
    
    // URL of the web source
    SourceUrl = "https://www.example.co.uk",
    
    // Retrieve the data with authorization header
    Source = Json.Document(
        Web.Contents(SourceUrl, [
            Headers = [Authorization = "Basic " & Credentials]
        ])
    ),
    // Retrieve the data with authorization header
    Records = Source[Records],