I'm really curious why the backend is in that state since so long. Today everything is scalable but HN performance is limited to a single process? And the compl

I'm really curious why the backend is in that state since so long. Today everything is scalable but HN performance is limited to a single process? And the complexity shouldn't be too high to migrate it to another framework/... when the current one does by design not support a multi process architecture. Do I miss something?