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I love things like this, but at the same time when I look at the API this library provides, it's not junior-friendly.

Even though I acknowledge it solves some problems I'd like to solve, if I put code using this library infront of a junior developer, they'd be paralaysed, and at best, if they weren't, write code with it that another junior wouldn't understand. That makes it difficult for me to justify introducing it.

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I agree in principle, though in this particular case io-ts does not tend to produce incomprehensible code. Maybe if juniors use it, it would, but it's easy to encapsulate the IO codecs in their own modules where the functional style of io-ts/fp-ts does not leak out to other parts of the code and only types can get reused.

That's not an unreasonable concern but it does mean you're writing code targeting the lowest common denominator. That's not a decision free from negative consequences.

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