A video is just an HTML page with a clock. HyperFrames (HeyGen's open-source framework) seeks a paused GSAP timeline to exact timestamps and captures each one as a frame — no timeline-scrubbing editor, just markup, CSS, and GSAP driving it.
This guide teaches the mental model (why everything must be seekable/deterministic), six copy-paste recipes, and a five-pitfalls section on the mistakes that cause blank renders or frozen frames. Independent guide, not affiliated with HeyGen.
Fusebox emails you at 50/80/100% of a monthly ceiling you set, before your OpenAI bill turns a side project into a bad month. It connects with an OpenAI Admin key scoped to api.usage.read only, nothing else, so it cannot touch billing, other keys, or your org's members. Built for the one person actually paying the invoice, not a team's finance dashboard.
