Simon Willison built a blog newsletter index almost entirely by voice
Key points
- He used the ChatGPT desktop app's Codex voice mode while cooking, against a local dev server with a visual preview.
- The feature adds a Newsletters index mixing free weekly Substack posts with sponsors-only monthly updates.
- Newsletters appear on date archive pages but not tag pages or the homepage; monthly ones become searchable after going public.
- Typed prompts were still needed for PR review and fixing the private repository import, adding about half an hour.
Why it matters for marketers: Content teams may find voice-plus-preview useful for drafting and quick iterations, but detailed fixes and code review still favored typing, per the author.