<ul data-eligibleForWebStory="true"><li>The article discusses the experience of replacing a Rails app with Elixir, highlighting unmet promises such as improved performance, fault tolerance, and lower costs.</li><li>Challenges included slower CRUD endpoints, lack of fault tolerance in bad code situations, and increased server costs due to less efficient connection pooling.</li><li>The article points out ecosystem gaps, hiring struggles, and debugging complexity as major pain points in the transition to Elixir.</li><li>While real-time features, background jobs, and high-throughput APIs worked well with Elixir, the article suggests a hybrid approach and thorough benchmarking before a full migration.</li></ul>

Why We Replaced Rails with Elixir (And Regretted It)

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