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nexu-io/fal-lip-sync

Créez des vidéos avec visage parlant et synchronisez l'audio avec la vidéo via fal.ai. Utile pour les avatars explicatifs, les aperçus de doublage multilingue et les extraits sociaux.

Qu'est-ce que fal-lip-sync ?

Cette compétence permet de créer des vidéos de type « tête parlante » et de synchroniser les mouvements des lèvres avec un fichier audio via l'API fal.ai. Elle est idéale pour les cas d'usage comme les avatars explicatifs, les aperçus de doublage multilingue (où l'audio est changé mais la vidéo d'origine est conservée avec une synchronisation labiale) et les extraits pour les réseaux sociaux. La compétence prend en charge plusieurs plates-formes d'agents AI (Claude Code, Cursor, Codex) et se base sur les modèles de lip-sync de fal.ai. En pratique, l'utilisateur fournit une vidéo source (avec ou sans audio) et un fichier audio cible ; la compétence appelle l'API fal.ai pour générer une nouvelle vidéo où les lèvres du sujet sont synchronisées avec le nouvel audio. Cela fonctionne soit en utilisant l'audio extrait de la vidéo source (pour une correction ou amélioration), soit en remplaçant l'audio par un fichier externe (pour le doublage). Le résultat est une vidéo prête à être intégrée dans des présentations, des campagnes marketing, ou du contenu éducatif.

Compatible avec~Claude Code~Codex CLI~Cursor
npx skills add https://github.com/nexu-io/open-design/tree/main/skills/fal-lip-sync
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Documentation

Que fait fal-lip-sync ?

Créez des vidéos avec visage parlant et synchronisez l'audio avec la vidéo via fal.ai. Utile pour les avatars explicatifs, les aperçus de doublage multilingue et les extraits sociaux.

Utilisation

Pour utiliser cette compétence, exécutez la commande suivante :

claude code --skill nexu-io/fal-lip-sync --input video.mp4 --audio audio.mp3

Options

  • --input : Chemin vers le fichier vidéo source (obligatoire)
  • --audio : Chemin vers le fichier audio cible (obligatoire)
  • --output : Chemin vers le fichier vidéo de sortie (optionnel, par défaut : output.mp4)

Exemple

claude code --skill nexu-io/fal-lip-sync --input presentation.mp4 --audio french_voiceover.mp3 --output synced_video.mp4

Intégration

Cette compétence utilise l'API fal.ai et nécessite que vous configuriez une clé API fal.ai. Définissez la variable d'environnement FAL_KEY avec votre clé API.

export FAL_KEY="your-fal-api-key-here"

Limites

  • La vidéo source doit contenir un visage visible.
  • L'audio cible doit être dans un format pris en charge par fal.ai (généralement .mp3 ou .wav).
  • La résolution et la durée de la vidéo peuvent être limitées par le plan d'abonnement fal.ai.

Dépannage

Si la synchronisation échoue, vérifiez que :

  1. La clé API fal.ai est correctement définie.
  2. La vidéo source contient un visage clairement visible et de face.
  3. L'audio cible est valide et non silencieux.

Pour plus d'informations, consultez la documentation fal.ai.

Individual skills in this repo

This repo contains 20 individual skills — each has its own dedicated page.

nexu-io/chat-motion-overlay

Generate configurable chat motion overlays from a transcript or screenshot, including plain bubble scenes, app-style chat containers, optional device frames, preset or uploaded avatars, nickname display rules, and transparent-video-ready Remotion bundles. Use when Codex needs to create reusable short-form chat clips for Douyin, demo videos, story reenactments, social-message proof scenes, or embeddable alpha overlays for Hyperframe and Remotion workflows.

nexu-io/create-video-storyboard

Use this plugin when the user wants a video concept, storyboard, shot list, prompt pack, or render-ready motion brief for a product, campaign, or explainer.

nexu-io/design-brief

Parse a structured design brief written in I-Lang protocol format into a concrete design spec. Eliminates ambiguity from vague requests like "make it professional" by requiring explicit dimensions: palette, typography, layout, mood, density, and constraints. Trigger keywords: "design brief", "create a design brief", "ilang brief", "structured brief".

nexu-io/frontend-design

Create distinctive, production-grade frontend interfaces with strong visual direction, polished typography, considered layout, and working HTML/CSS/JS or framework code. Use for websites, landing pages, dashboards, React components, application screens, and UI beautification.

nexu-io/hatch-pet

Create, repair, validate, preview, and package Codex-compatible animated pet spritesheets from character art, screenshots, generated images, or visual references. Use when a user wants to hatch a Codex pet, create a custom animated pet, or build a built-in pet asset with an 8x9 atlas, transparent unused cells, row-by-row animation prompts, QA contact sheets, preview videos, and pet.json packaging. This skill composes the installed $imagegen system skill for visual generation and uses bundled scripts for deterministic spritesheet assembly.

nexu-io/hyperframes

Create video compositions, animations, title cards, overlays, captions, voiceovers, audio-reactive visuals, and scene transitions in HyperFrames HTML. Use when asked to build any HTML-based video content, add captions or subtitles synced to audio, generate text-to-speech narration, create audio-reactive animation (beat sync, glow, pulse driven by music), add animated text highlighting (marker sweeps, hand-drawn circles, burst lines, scribble, sketchout), or add transitions between scenes (crossfades, wipes, reveals, shader transitions). Covers composition authoring, timing, media, and the full video production workflow. For CLI commands (init, lint, preview, render, transcribe, tts) see the hyperframes-cli skill.

nexu-io/pptx-html-fidelity-audit

Audit a python-pptx export against its source HTML deck, identify layout/content drift (footer overflow, cropped content, missing italic/em, lost styling, off-rhythm spacing), and re-export with strict footer-rail + cursor-flow layout discipline. Use this skill whenever the user has a .pptx that was generated from an HTML slide deck and asks to compare/audit/verify/fix the export — including phrases like "compare ppt with html", "fidelity audit", "fix the pptx", "ppt is cut off", "footer overlap", "italic missing in pptx", "re-export the deck", "pptx-html-fidelity-audit", or any case where a python-pptx → HTML round-trip needs verification or repair. Also trigger when the user shows you a deck.html and a deck.pptx side by side and is debugging visual differences.

nexu-io/remotion

Programmatic video creation with React. Useful for branded explainers, social cuts, dashboards-to-video, and reproducible motion graphics.

nexu-io/social-media-dashboard

Creator-facing social media analytics dashboard in a single HTML file. A platform switcher (X / LinkedIn / YouTube / Instagram), a row of KPI cards (followers, engagement rate, likes, reposts), a follower-growth chart, a "top post this week" preview, and a trending topics / top comments side panel. Use when the brief mentions a "social media dashboard", "creator analytics", "social analytics", or names specific platforms (X, Twitter, LinkedIn, YouTube, Instagram, TikTok) together with metrics like followers, engagement, likes, reposts.

nexu-io/sora

Generate, remix, and manage short video clips via OpenAI's Sora API. Useful for cinematic shots, b-roll, and rapid concept video iteration.

nexu-io/ui-ux-pro-max

Catalog-only UI/UX Pro Max entry. The full upstream templates, data, and search workflow are not bundled in Open Design.

nexu-io/video-hyperframes

Hyperframes / Remotion-compatible continuous frame animation with autoplay support.

nexu-io/video-shortform

Short-form video generation skill — 3-10 second clips for product reveals, motion teasers, ambient loops. Defaults to Seedance 2 but works the same with Kling 3 / 4, Veo 3 or Sora 2. Output is one MP4 saved to the project folder. When the workspace also ships an interactive-video / hyperframes skill, prefer composing several short shots into a single timeline rather than one long monolithic clip.

nexu-io/video-template-frame-bold-poster

Use this plugin when the user wants a "Bold Poster Frame" HyperFrames motion video — A 1970s European editorial poster in motion — a red rule draws across, a giant tilted figure drops in, a three-line headline rises line-by-line, an italic serif standfirst fades.

nexu-io/video-template-frame-bold-signal

Use this plugin when the user wants a "Bold Signal Frame" HyperFrames motion video — Bold colored card on a dark gradient — big section number, nav breadcrumb, orange card sliding in, title rising.

nexu-io/video-template-frame-build-minimal

Use this plugin when the user wants a "Build Minimal Frame" HyperFrames motion video — Luxury-minimal whitespace hero — single word reveals letter by letter, warm-gold hairline, breathing indicators.

nexu-io/video-template-frame-creative-voltage

Use this plugin when the user wants a "Creative Voltage Frame" HyperFrames motion video — Electric split with hand-drawn script — offset panels slide in, display title rises with an outlined word, script strokes itself in.

nexu-io/video-template-frame-data-chart-nyt

Use this plugin when the user wants a "NYT-Style Data Chart Frame" HyperFrames motion video — NYT-newsroom typography, staggered reveal animation, and editorial-grade charts (line, bar, or range band).

nexu-io/video-template-frame-data-rollup

Use this plugin when the user wants a "Data Rollup Frame" HyperFrames motion video — A native Remotion data frame — bars grow from zero by real data via spring physics while the figures roll 0→target in sync.

nexu-io/video-template-frame-product-promo-30s

Use this plugin when the user wants a "Product Promo · 30s" HyperFrames motion video — Multi-scene 30-second product promo: problem-type intro, brand reveal, benefits flowchart, product surfaces, value pillars, foundation, CTA outro. Forked from Nate Herk's hyperframes-student-kit (linear-promo-30s); brand-specific copy + assets replaced with generic placeholders.

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