Here is a 2-3 sentence summary of what the project does and who it's for: The SuperJSON project provides a way to safely serialize JavaScript expressions to a superset of JSON, supporting additional data types such as Dates, BigInts, and more. This library is designed for developers working with JavaScript, particularly those using Next.js, who need to serialize and deserialize complex data structures while maintaining type safety and autocompletion. By using SuperJSON, developers can easily work with a wider range of data types and avoid the limitations of standard JSON serialization.