Write the first-adapter contributor guide

Campaign: v0-good-first-issues Seed id: first-adapter-guide

Summary

Write a practical guide that helps a new contributor evaluate and start their first Proto UI adapter.

Scope

• Explain the adapter proposal path.
• Link to the host capability checklist.
• Walk through a minimal adapter validation plan.

Acceptance criteria

• The guide distinguishes a research spike from a production adapter.
• The guide includes expected tests or demos for a minimal adapter.
• The guide links to existing React, Vue, and Web Component adapters.

References

• apps/www/src/content/docs/en/build/adapter-guide.md
• packages/adapters/react
• packages/adapters/vue
• packages/adapters/web-component

Out of scope

• Adding a new adapter.
• Changing adapter contracts.

Maintainer notes

Category: docs Difficulty: small