I was inspired by another post showing how to make videos autonomously using Opus 5.5 (prompt below)

style, then render it to MP4. Avoid cartoonish or whimsical characters; the tone is calm, literate and trustworthy, with a touch of warmth. Spend the time to make this as polished and professional as possible.

SUBJECT

Earlybound (earlybound.co.uk), a platform where authors find beta readers and ARC reviewers for their books. Read the Earlybound repo (MrLewk/earlybound) as a read-only reference: README.md, src/styles/index.css for the palette and fonts, and the marketing pages under src/. Also read the live site at earlybound.co.uk. Never commit, push or modify the repo; build everything in a separate earlybound-video/ folder outside the clone.

BEFORE STARTING

Confirm that openrouter.ai, ffmpeg and headless Chromium are reachable or installable. If any are blocked, stop and report which one instead of working around it.

VISUAL SYSTEM (must match the app)

\- Paper background #e8e4da with subtle grain; ink #14161f; teal #2f6f63 as the main accent; gold #b98a2e for highlights; stamp red #a13d3d for margin marks.

\- Use Lora for all headline and caption type.

\- Build all text, margin notes and UI in code from these tokens. Use generated images only for textures and props (paper grain, ink washes, desk objects), never for lettering.

\- Motion: page turns, hand-drawn ink underlines, margin notes appearing stroke by stroke, highlighted sentences, a wax-stamp