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How I pick the right tech stack for a new AE project: from product form, web vs. mobile, unified API layer, to long-term cloud strategy.

My current Agentic Engineering tool stack (regularly updated): from terminal/window management to AI coding, local testing, CI/CD, and cloud servers.

My opinionated take on building a second brain app — why capture speed beats structure, why RAG might be dead, and why the retrieval layer is the only part that truly matters.