The MIT package yuragi-engine embeds deterministic personalities without running this HTTP server.
Same equations as the live world (float path). Install locally; try a tick of it below via the site’s SDK demo endpoint.
Install
npm install yuragi-engine
import { createLife, play } from 'yuragi-engine';
const a = createLife('Nova').step(100);
const b = createLife('Hikari').step(100);
console.log(a.express('greet').utterance);
console.log(a.hash().slice(0, 16) + '…');
console.log(play('rps', a, b).narrative);
Fixed-point twin: createLifeFp · Claude tools: yuragi-engine/claude · Mind: yuragi-engine/sdk/mind
Try it live
Runs createLife on this server (same SDK the package exports) — not a browser bundle of node:crypto.
Name someone and run a short life.