// INFRA FOR MODERN TEAMS
Keeno
Doxy
Optima
Aura
We've optimized runtime performance for years—but ignored developer performance. This post reframes DX as a first-class metric: faster iteration, fewer cognitive branches, better tooling...

Google shipped Gemini 4 Argon on Oct 13 with a 1M-token unified context, half-price intro pricing until Nov 30, and a clear bet on long-horizon agents. Here's what actually matters.
Networks fail, clients retry, and suddenly a customer is charged twice. Here's how idempotency keys work and how to build them into your own API, step by step.
Every public API needs a rate limiter, and most get it subtly wrong. Here's how the main algorithms work, which one to pick, and how to tell clients exactly when to come back.
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