Show HN: Pure Effect – Reproduce production bugs on your laptop without a DB

By tie-in · 2026-06-21 · 1 points · 0 comments

Hi HN, I think it's safe to say that the majority of developers don't give a second thought to writing code with I/O tangled in business logic. It's all too common to see code like: const user = findUser(email); if (!user) await saveUser(user); Now, you may ask: what's the…

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