PluralKit/Myriad/Serialization/JsonStringConverter.cs

using System.Text.Json;
using System.Text.Json.Serialization;

namespace Myriad.Serialization;

public class JsonStringConverter: JsonConverter<object>
{
    public override object? Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
    {
        var str = JsonSerializer.Deserialize<string>(ref reader);
        var inner = JsonSerializer.Deserialize(str!, typeToConvert, options);
        return inner;
    }

    public override void Write(Utf8JsonWriter writer, object value, JsonSerializerOptions options)
    {
        var inner = JsonSerializer.Serialize(value, options);
        writer.WriteStringValue(inner);
    }
}