Tbh I had no idea this was even a thing until recently. I've been working with Rails for a while now and somehow never came across it. So let me explain it the way I understood it. You know how we normally do associations in Rails, User has many Posts, Post belongs to User. Two different models, two different tables. Simple. But what if a model needs to reference itself? Like same table, same mode
Let me rewind to a Tuesday afternoon I’d rather forget. We had a Rails monolith that had grown fat and happy over five years. The dashboard—a beautiful, chart-filled monster—was running a 12-second query every time the CEO clicked “refresh.” Twelve seconds of GROUP BY, COUNT(DISTINCT), and LEFT JOIN hell across a million-row events table. The CEO didn’t yell. He just stared at the spinning cursor
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