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Redoing an Event Schedule Straight from Your Phone

Simon Willison scraped a conference website and built a better interface using only his phone.

Profession
Developer
Tools
Codex, Claude Artifacts
Source
simonwillison.net ↗
Country
🇬🇧 United Kingdom
Report date
July 17, 2025
Verified on
October 24, 2026
Illustrative photo: Tourism sector

What they did

He extracted the schedule and generated a phone-friendly agenda app.

How it went

The account gives no numbers.

Good to know

Respect the terms of the scraped site.

The prompt

I have the event schedule [paste text/JSON]. Create a single mobile-friendly HTML page with filters by day and stage and a button to favorite sessions (saved on the device).

Replace what is in [brackets]. Prompt written by us from the account, not a literal copy of the source. Do not paste other people’s personal data (privacy laws such as LGPD and GDPR apply).

Summary in our own words. Results as stated in the original account; we have not tested or audited them. Read the source ↗ Found a mistake?

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