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Practical Test Guides

Begin here if you run a Next.js site, build with AI tools, or need reproducible ways to diagnose Mac and browser problems.

Recommended reading order

Diagnose a deployment that has not updatedDiagnose a slow MacChoose among GPT-5.6 modesChatGPT Work, Chat, and CodexRecover from a pushed API keyNext.js App Router pitfalls from practice

Blog operations

Publishing, AdSense, and analytics: distinguish configuration, observed results, and recovery steps.

Mac guides

Choose Mac settings, peripherals, and local AI with checks and reversible troubleshooting steps.

AI Development and Automation

Codex, VS Code, GitHub, Next.js, Firebase, Chrome extensions, indie development, and automation.

AI Literacy and Verification

Hallucinations, official-source checks, education, security, copyright, and careful AI use.