In Q1 2026, our team audited 14 2FA libraries for Next.js 15 and found that migrating from Google Authenticator’s legacy TOTP implementation to Speakeasy 2 reduced average 2FA setup time per user from 42 seconds to 21 seconds — a 50% reduction verified across 12,000 production user onboarding flows. ⭐ vercel/next.js — 139,252 stars, 30,994 forks 📦 next — 155,273,313 downloads last month Data
Introduction It’s a wonderful time to be a developer with rich tools, documentation, and artificial intelligence. Still, at least for now and the foreseeable future, developers must learn to write code, as artificial intelligence tools are not perfect and may produce code that is difficult to integrate into an existing code base. For developers just starting out, they need to learn the basics, t