Headless media capture: screenshots/video of the app + skill#64
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Enable faithful media capture from the headless dev stack and document it as a skill: - compose.headless.yml: set WEBKIT_DISABLE_COMPOSITING_MODE=1. WebKitGTK renders CSS opacity/transform animations on GPU compositor layers that Xvfb's software path never flushes to the X framebuffer, so screen-grabbed captures silently drop every transition. Forcing compositing off paints into the readable window buffer. - Dockerfile.tauri-headless: add ffmpeg (x11grab recording) and python3-pil (brand framing). - .claude/skills/capturing-voltius-media: new skill covering stills (existing docs pipeline), video (record via ffmpeg x11grab, drive via tauri-driver, edit via ffmpeg zoompan), and brand-gradient framing that reuses docs/tools/screenshots/frame.py. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01HKUYb6g8PZNPSususpTGPg
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What
Enables faithful screenshot/video capture from the headless dev stack, and documents the workflow as a skill.
WEBKIT_DISABLE_COMPOSITING_MODE=1. WebKitGTK renders CSS opacity/transform animations on GPU compositor layers that Xvfb's software path never flushes to the X framebuffer — so screen-grabbed captures silently drop every transition/animation. Forcing compositing off paints into the readable window buffer.ffmpeg(x11grab recording) +python3-pil(brand-gradient framing).../docs/tools/screenshots/frame.py.Testing
Drove the live headless app: recorded a language-switch demo with animations intact (verified via
signalstatsluminance ramp), and a fresh agent using only the skill successfully recorded the command-palette open animation.🤖 Generated with Claude Code
https://claude.ai/code/session_01HKUYb6g8PZNPSususpTGPg