Brag Ebook: AI Promo & Demo Videos with Codex

Built an app with AI? Help potential users understand the product.

Learn to create promotional videos and app demos with Codex, Brag, and HyperFrames. Use real product UI, explanatory motion graphics, narration, and a call to action to show your app's benefits and user journey.

What you receive

• A 25-page PDF ebook, Edition 1.0, written in Indonesian.
• A bonus Markdown prompt pack to copy and adapt to your app.
• A Sendi Studio Website Services promo case study, including actual production frames.

Plan first, then produce

1. Describe your app, its benefits, and your target users in a simple prompt.
2. Ask the agent to create and save brag-plan.md as the video production reference.
3. Review the hook, demo flow, narration, motion, and call to action.
4. Approve the plan, then proceed with UI capture, composition, rendering, revisions, and final checks.

What the guide covers

• Installing Codex and the Brag skill on Windows, macOS, and Linux.
• Personal/project skill locations, app preparation, and HyperFrames tool checks.
• Storyboards for a 20-second promo and a 60-second vertical demo.
• Motion that explains the product: zooms, pointers, highlights, transitions, and reading holds.
• Revision prompts for overlapping text, elements appearing too early, and abrupt movement.
• Indonesian voiceover, music mixing, render verification, captions, and production archives.

Who is it for?

Developers, SaaS builders, app owners, and people building with AI who already have a project or web demo and want to create promotional content using Codex.

Case study: Website Services

See the workflow applied to a 20-second Sendi Studio promotional video in vertical 1080x1920 at 60 fps. The example connects template choices, a Seduh menu demo, and a consultation call to action into a short story. The case study uses demo data.

Before you start

You need a computer, access to Codex, a working project or demo page, and an internet connection. The guide explains the requirements for Node.js, Git, FFmpeg, and rendering tools. Agent accounts, TTS/API services, and paid assets are obtained separately.

Product details

• Download format: ZIP containing the PDF ebook, Markdown prompt pack, and getting-started instructions.
• Ebook and prompt language: Indonesian. This listing is in English; the ebook is not an English translation.
• Agent edition: Codex. The Claude Code edition is sold separately.
• This is a written guide. Video lessons and source code for the example apps are not included.

Brag is available free and open source. This product contains Sendi Studio's guide and prompts. Video results depend on your project, assets, tool access, and revision process.