Programming · Blog · 🇬🇧 United Kingdom
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

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?
Similar cases
01Teaching an agent to use your bank's API
A developer created an open source skill so Codex and Claude Code can integrate with the Banco Inter API.
02Letting the agent deploy and read production errors on its own
The founder of a deployment platform explains how they designed an MCP server to take the human out of "copy and paste the log".
03Launching a habit app solo and doing the marketing with AI
A dev created Kada, a habit app with no account and no ads, and used AI for marketing.
04Building an "internet TV" in 6 days with a team of agents
A dev created Crom TV, with 24-hour channels of YouTube videos, coordinating several AI agents.
05Asking AI for a specific algorithm for a research project
A developer skeptical of LLMs used Gemini to generate random quantum circuits in the QCOP project.
06Set up a 100% local AI coding environment
A junior developer integrated local models into VS Code with Ollama and Cline, with no paid APIs.
07Build a World Cup tracking website with AI help
An engineer built Central da Copa 2026 and explains why it wasn't "just asking the AI to do it."
08Following the AI blindly and breaking Linux (and learning from it)
A developer describes how commands suggested by an AI broke their dual boot and what they learned.