system design
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Solved: I built a workflow engine on top of React Flow (auto-layout, undo/redo, MVC, validation)
Building a workflow engine in React Flow? A senior engineer reveals the hidden pitfalls of undo/redo, auto-layout, and validation that lead to tech de Continue reading
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Solved: How do you grow a secondhand business when everything you find only exists once?
Struggling with automation for unique, one-time tasks? Learn to architect resilient, idempotent systems and prevent catastrophic deployment failures. Continue reading
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Solved: Omni explains “hallucination” in its own words. Using AI credits on free trial.
AI hallucinations are system-level bugs. Learn why your LLM fabricates info on billing & free credits & get practical fixes to ground it in reality. Continue reading
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Solved: Found a Bible study store doing $214K/month and at least 6 competitors running the same model. Here’s what’s actually happening
A Bible app makes $214k/month using a simple tech stack. Learn the low-cost cloud architecture for static data sites and avoid common over-engineering Continue reading
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Solved: How to build a distributed queue in a single JSON file on object storage (S3)
Learn why a distributed queue on a single S3 JSON file fails due to race conditions. Explore three practical solutions to handle concurrent writes saf Continue reading
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Solved: Our dental clinic cut no-shows by like half after we stopped relying on phone calls
Learn how a dental clinic cut no-shows in half by ending phone calls and what it teaches about improving system reliability by removing synchronous bl Continue reading
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Solved: Cloud Infrastructure Architecture: At what point does it become worth redesigning everything?
Learn when to patch, refactor, or completely rebuild your cloud architecture. A senior DevOps engineer on how to manage tech debt and decide when to r Continue reading
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Solved: What is everyone using for background jobs nowadays?
Choosing a background job processor? This guide compares modern tools, from simple cron to event-driven systems like Kafka, for scalable applications. Continue reading
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Solved: I stopped promising results in my copy and started explaining why things fail response rate doubled
Stop writing ‘happy path’ automation that breaks. Learn why designing for failure is the key to building resilient systems and ending 3 AM pages for g Continue reading
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Solved: My cousin’s hair salon is getting absolutely wrecked by Google reviews and I don’t know how to help her
Fake Google reviews are a system failure. Learn how a DevOps mindset can protect any small business or hair salon from the chaos of unverified input. Continue reading