What's this about?
A Show HN project packing a full slide deck — viewer, editor, data, even collaboration — into a single self-contained HTML file, with the slide data as a plain JSON block near the top that humans and AI agents can grep and edit directly.
What exactly is a "single-file web app"?
A complete application in one .html file: open it in any browser, no install, no server, email it like an attachment. It's a resurgent idea partly *because* of AI — a single file is the easiest thing for a coding agent to read, modify, and regenerate.
What's the community saying?
HN 678 points, 153 comments — the day's #1 Show HN
- Enthusiasm for single-file apps as a category; someone is drafting a Wikipedia page for the concept.
- Sharp eye: the page says "nothing phones home," but files contain a Cloudflare Insights beacon — author took the hit.
- Others asked why the homepage mentions AI 20+ times and what the base64 blobs are — the agent-editability pitch cuts both ways.