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Bad docs kill projects. Good docs save them. Automate your documentation to keep it accurate. Regenerate docs from source code.
Use tools for API docs.
- JSDoc
- Sphinx
- TypeDoc These tools pull info from your comments. Your docs stay in sync with your code.
Use Architectural Decision Records (ADRs).
- Capture the decision.
- List the context.
- Note the alternatives. Keep ADRs in your repository. Future engineers need your reasoning.
Make your README clear.
- Explain the project.
- Show the setup.
- Explain how to use it.
- List how to contribute. Use templates to stay focused.
Build internal sites for your team.
- Docsify
- Docusaurus
- GitBook Use markdown files in your repo.
Set up CI jobs. Update docs when code changes. Manual updates fail. People ignore untrusted docs.
Write the why. Code shows what the system does. Docs explain why you built it this way. Context is the most valuable part.
Include docs in code reviews. No doc update means no PR approval. Make documentation part of your definition of done.