Upgrading a .NET 5 "Startup-based" app to .NET 6: Exploring .NET Core 6 - Part 12

In this short post I tackle a question I have received several times-"how can I update an ASP.NET Core 5 app that uses Startup to .NET 6's minimal hosting APIs"? I've had quite a few emails recently from people about some of the changes introduced in .NET 6 which I've described in this series.