in lib/utils.js [93:101]
static generateId(prefix, length = 21) {
// base58; non-repeating chars
const chars = '123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz';
const str = Array(length - prefix.length)
.fill(0)
.map((_) => chars[Math.floor(Math.random() * chars.length)])
.join('');
return `${prefix}${str}`;
}