[Fremen1990]

What changes

Publishes “Your API key is private. Until you ship it.” in English and Polish, dated 13 October 2026. The article explains the Car Brain VIN credential boundary, the move to an Appwrite Function and the operational tradeoffs, with a responsive before/after diagram. Adds explicit translated heading pairs so language switching preserves the equivalent section.

Both editions use the existing article renderer, metadata, share cards and static export. No Car Brain application, CV, store availability or LinkedIn account changes.

Validation

• Lint, typecheck, changed-file Prettier check and production build passed.
• 112 unit tests and 313 Chromium/Playwright tests passed, including EN/PL routes, no-JavaScript reading, accessibility and responsive checks across both skins/themes.
• Desktop EN and mobile PL visual inspection completed. Exported canonical URLs, language alternatives and absence of private-preview banners checked.
• Fixed two issues found during verification: MDX paragraph markup inside SVG labels and missing EN/PL heading correspondence.
• No physical-device, Safari/Firefox or live Appwrite verification. In-app browser unavailable; repository Playwright Chromium used.