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The Ruby and Rails community linklog

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In many cases, latency is unavoidable — but poor user experience isn’t.

by Giménez Silva Germán Alberto —

Modern Rails apps increasingly depend on external systems: APIs, background services, and AI/LLM inference. https://rubystacknews.com/2026/02/06/tackling-inevitable-i-o-latency-in-rails/

In this article, I break down key ideas from a Kaigi on Rails 2025 talk by Taiki Kawakami (moznion) on using Server-Sent Events (SSE) and async to make long-running operations observable, responsive, and user-friendly.

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