simdle‑universal is a Node.js library that provides SIMD‑style bit‑wise and population‑count operations on typed buffers, automatically using the native **libsimdle** implementation when available and falling back to a pure‑JavaScript version otherwise. It’s aimed at developers who need fast, low‑level bit manipulation (e.g., bit‑maps, cryptography, data compression) in JavaScript/Node environments without worrying about platform‑specific SIMD support.