How to run dotnet run in development mode?

• Define a CLI parameter for development mode, lets call it mode and pass it to dotnet run as dotnet run --mode dev. In the absence of --mode, you could configure the code to run dotnet run command in production mode.
• In your main function, extract --mode value from args and use it to change behavior based on its value:

[<EntryPoint>]
let main args = 
    let mode = 
        args
        |> Seq.chunkBySize 2
        |> Seq.filter (fun arg -> arg[0] = "--mode")
        |> Seq.map (fun args -> args[1])
        |> Seq.tryExactlyOne
    
    match mode with
    | Some mode when mode = "dev" ->
        // dev code
    | _ ->
        // prod code