Non-nullable property 'Category' must contain a non-null value when exiting constructor. Consider declaring the property as nullable.

Non-nullable property 'Message' must contain a non-null value when exiting constructor. Consider declaring the property as nullable.

Converting null literal or possible null value to non-nullable type.

Dereference of a possibly null reference.

Nullability of reference types in type of parameter 'sender' of 'void ISink.OnLogEvent(object sender, LogEventArgs e)' doesn't match the target delegate 'EventHandler<LogEventArgs>' (possibly because of nullability attributes).

Cannot convert null literal to non-nullable reference type.

Possible null reference argument for parameter 'path' in 'void File.AppendAllText(string path, string? contents)'.

Change this condition so that it does not always evaluate to 'true'. (https://rules.sonarsource.com/csharp/RSPEC-2589)

Remove this set, which updates a 'static' field from an instance method. (https://rules.sonarsource.com/csharp/RSPEC-2696)