https://learn.microsoft.com/en-us/dotnet/api/microsoft.entityframeworkcore.storage.valueconversion.valueconverter?view=efcore-8.0
ValueConverter Class (Microsoft.EntityFrameworkCore.Storage.ValueConversion) | Microsoft Learn
Defines conversions from an object of one type in a model to an object of the same or different type in the store.
classmicrosoftentityframeworkcorestoragelearn