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take $ 06.30.26 · 09:10

Concurrency isn't a feature you add

A real-time marketplace is a concurrency problem wearing a product costume. You can bolt fault-tolerance onto the wrong runtime, supervisors you hand-wrote and queues you babysit, or you can pick one where process isolation is the floor and not the upgrade. At GigSmart I reached for Elixir for exactly that. One slow request shouldn't take down the ones next to it, and on the BEAM it doesn't, by default. Reach for it when concurrency is the product. When it isn't, the runtime is a tax you didn't need. Earn it.

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