Quick build-in-public post, same vein as my earlier n8n automation service posts.
I wanted to package something adjacent to that work: a guide to HyperFrames, an open-source framework (from HeyGen) that renders video from plain HTML/CSS/GSAP instead of a timeline editor. There's a Claude Code skill that teaches an AI agent this framework - genuinely useful, but not something I built, so selling a copy of it would've been selling someone else's open-source work as my own.
What I did instead: wrote an original guide teaching the technique - the actual mental model (why the render has to be deterministic and seekable, and what that means for how you write animation code), plus six complete working recipes (title reveals, counting stats, crossfades, that kind of thing) with real code, checked against the framework's actual contract rather than simplified examples that fall apart the moment you try to render them for real. Same rule paid Docker/React courses run on: the tool itself is free, the technique you package around it is legitimately yours to sell.
$19 on Gumroad if it's useful to anyone building video-from-code pipelines: https://sidheart.gumroad.com/l/lyudd
Happy to answer anything about HyperFrames or the deterministic-rendering mental model if useful - not trying to oversell it, just sharing what I built.
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