sc‑scheduling is a lightweight JavaScript library that provides a high‑precision, look‑ahead scheduler and a transport abstraction for managing timelines in both Node.js and browsers. It lets developers schedule audio, visual or other time‑based events, synchronize multiple clients or devices, and control playback (play, pause, seek, loop, speed) with state that can be shared across a network. Ideal for interactive media, audio‑visual installations, and any web‑based application that needs accurate, distributed timing.