Explore the journey of building a gRPC implementation for .NET Core in this keynote presentation by Microsoft's Sourabh Shirhatti and John Luo. Delve into the design process, limitations of existing .NET gRPC libraries, and innovative solutions developed by the ASP.NET team. Gain insights into the opinionated framework's design decisions, productivity enhancements, and performance benefits. Learn about grpc-dotnet, security considerations, distributed tracing, the hosted app model, and binding sharing. Discover the importance of performance metrics and the grpc-dotnet community. Conclude with valuable lessons learned throughout the development process, providing a comprehensive overview of the challenges and triumphs in creating a robust gRPC implementation for .NET Core.