One Substrate, Two Renderers

I built a tool that generates demo videos from a running system, then decided not to productise it. Separately, I keep a backlog of blog posts seeded from postmortems. It took me an embarrassingly long time to notice these are the same pipeline with different output formats. The shape Both do this: source of truth → verify the claim → scrub what identifies the client → structure → publish For a video, that reads: query the production database and run the deployed models → confirm every number can be re-derived by a command → replace client identities with stable pseudonyms and prove nothing leaked → lay out scenes and narration → render an MP4. ...

August 22, 2026 · 4 min · Leandro Garcia