Why Pinterest just open-sourced new tools for the Elixir programming language

At Pinterest, that company with a popular app for pinning images and other content to boards, much of the source code is written in the longstanding Python programming language. But in the past year, a few of the company’s software engineers have called on a young language called Elixir.

Pinterest’s notification system now uses Elixir to deliver 14,000 notifications per second.

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