Copyright’s reach is already far too broad, and courts have no business expanding it any further, particularly where that reframing will undermine adversarial interoperability. Unfortunately, a federal district court did just that in the latest iteration of Oracle v. Rimini, concluding that software Rimini developed was a “derivative work” because it was intended to interoperate with Oracle's software, even though the update didn’t use any of Oracle’s copyrightable code.That’s a dangerous preced...