NexaDeck is professional karaoke DJ software for Mac, Windows, and Linux with Rust-powered audio processing, smart singer rotation, multi-display output, and CDG+MP3/MP4 playback. NexaLive is cloud-powered audience engagement with zero-friction song requests, venue kiosk mode, mobile DJ control, and show discovery. Together they form the only integrated desktop + cloud karaoke platform for professional KJs, bars, venues, and mobile entertainment companies.