yt-dlp External JavaScript Solver

yt-dlp-ejs is a specialized Python library that provides external JavaScript execution capabilities for yt-dlp, the popular video downloader. It solves YouTube's signature and n-parameter challenges by bundling JavaScript solvers that work across multiple runtimes such as Deno, Bun, Node.js, and QuickJS. Currently at version 0.8.0, it maintains a frequent release cadence to adapt to YouTube's player code changes.