LaunchVideo: a launch video from a URL or a prompt
Paste a URL or a prompt. Get a launch video, written and rendered by Opus 5.5 on an OpenComputer serverless agent. No video model.
Self-Hosted Web Application
Summary
Karpathy built HackerTube, a self-hosted YouTube clone featuring 6,454 videos curated from 40,000 Hacker News recommendations (2007–2026) across 150 topics. Built in ~2 hours using Claude Code (Opus 5.5), with only manual steps for API key, VPS, and domain.
Highlights
- 6,454 videos curated from 40,000 HN comments across 150 topics, filtered via Sonnet workflow to remove spam
- Built in ~2 hours with Claude Code (Opus 5.5); only manual steps were API key creation, VPS boot, and domain purchase
- Uses 50% thumbnail crops, local browser state for ForYou recommendations (no accounts), and keyboard shortcuts
- Site data is exportable so users can give it to their own agent to create a personal version
- Karpathy describes no longer doing traditional engineering, only directing Claude Code to handle all coding tasks
auto-generated
Context
Audience
Developers interested in AI-assisted coding, self-hosting enthusiasts, and Hacker News community members seeking curated technical content
DomainAI-Assisted Development
Formatblog post
Accessfree online, self-hostable
Source Overview
Karpathy built HackerTube, a YouTube-UI site hosting 6,454 videos recommended in 40,000 Hacker News comments from 2007–2026 across 150 topics.
The site uses 50% thumbnail crops, generates ForYou recommendations via local browser state without accounts, and supports keyboard shortcuts. He created it with Claude Code (Opus 5.5), performing only manual steps for a Google Cloud API key, VPS provisioning, and domain purchase.
Topics
Related
Claude CodeOpus 5.5Hacker NewsYouTube Data APISelf-hostingAI agent workflows
