Skill Video Studio is an open-source workspace for producing polished product-demo videos with Claude Code. Its `/devrel-video` skill guides a creator from a product brief through exploration, brand setup, browser capture, composition, and final quality checks. It uses Playwright to record real product interactions, HyperFrames to assemble title cards, browser framing, chapters, and calls to action, and FFmpeg/ffprobe to master and inspect the output. The workflow starts with a silent walkthrough and can add narration, music, subtitles, presenter footage, or terminal and browser sequences. Reusable brand tokens, templates, scripts, and project briefs help keep productions consistent.
The repository includes two worked examples: a narrated Acme walkthrough with music and English/Spanish subtitles, and a composed CLI/browser film whose terminal scenes are HTML reenactments. A quick-start prompt produces a brief and beat plan, but the featured setup demo stops before capture or rendering; it does not represent a finished video. Full production requires Node.js 22 or later, FFmpeg/ffprobe, Chromium, and helper-specific Python dependencies, while optional narration and avatar features need separate services or GPU access. Private credentials and footage are intended to remain outside the repository. Portrait and social-video profiles are still planned, and automated checks do not validate the full production stack. The original studio content is MIT-licensed, with separate terms applying to embedded fonts and external media or tools.
Summary generated by AI from the linked article. hn.today is not affiliated with Hacker News or Y Combinator.
Office Engine is a browser-based tool for viewing and editing DOCX, XLSX, and PPTX files, with the project claiming it opens a 300,000-row spreadsheet in about 300 ms without a server. It supports formulas, real-time collaboration, and saving in the original file format. (github.com)
HJKL is a free browser game that teaches Vim through short editing challenges in a real Vim editor. It guides users from practice to independent edits across motions, searches, text objects, and other commands, with no sign-up or stored data. (hjkl.duy.run)
Rustable is an open-source database client written in Rust, available as a desktop app and a browser-based WebAssembly demo. It supports PostgreSQL, SQLite, MySQL, MariaDB, and Redis, with tools for querying, browsing, and editing data. (rustable.app)
OpenAI is scaling Git for its engineering work. The provided comments do not describe the specific changes. (openai.com)
Ruby’s default argument expressions run only when an argument is omitted, so assigning a marker there distinguishes omission from explicit false or nil. This technique lets methods support both reading a value and setting it without a separate sentinel object. (aha.io)
Pratt parsing assigns parsing behavior to tokens based on whether they appear at the start of an expression or after a left-hand expression. Its key insight is organizing parsing around what can appear to a token’s left, rather than around grammar production rules. (vinipsmaker.github.io)
Today's best Hacker News stories, summarized and screenshotted, one email a day.