Tutorials
Integration guides, best practices and troubleshooting
Context engineering in practice: build a maintainable operating system for AI agents
A context engineering guide for AI agents. Use task briefs, AGENTS.md, scoped Skills, executable references and task evaluations to reduce guessing and rework.

Can Connecting ChatGPT Web to Codex Save Tokens? Two Open-Source Workflows and Their Limits
Can ChatGPT Web reduce Codex token use? Compare codex-chatgpt-web and codex-with-chatgpt, then assess subscription quota, API billing, tool permissions, data exposure, and a safe trial checklist.

How to Use free-for.dev to Ship an MVP Without Collecting 1,000 Free Tools
Learn how to use free-for.dev to select free developer services for hosting, databases, storage, email, monitoring, and AI. Build a testable MVP with a practical service-selection worksheet and pre-launch checklist.

How to Choose AI Tools and Skills for Presentations: 4 Practical Workflows
Learn how to make presentations with AI. Compare Gamma, NotebookLM, PPTBot, Codex, ppt-master, frontend-slides, and other presentation Skills, with repeatable workflows, copyable prompts, and review checklists.

How to Choose Research Agent Skills: 10 GitHub Projects Mapped to Real Workflows
Compare 10 research Agent Skill projects for Codex and Claude Code. Learn how to choose a primary and verification Skill, review installation risks, test citations and reproducibility, and build the smallest useful research stack.

Connect LobeHub to Code0 in 10 Minutes: Setup and Troubleshooting
A practical LobeHub and Code0 integration guide covering Base URL, API key, model ID, streaming and multi-turn tests, Docker settings, and fixes for 401, 404, 429, blank responses, vision, tools, and knowledge bases.