# The three missing STEM figures

**What.** `1.introduction/stem-tech-stack.md` links three images, `STEM-tech-stack_001..003.png`, that the 2018 repository never generated from its PlantUML source (`puml-graphs/diagrams/stem/`). Decide whether to render them from the `.puml` for the working copy, or redraw them as infographics for the second edition.

**Done when.** The reviewer's record for the chapter says which, and the working copy in the vault carries the figures or the note.

**From.** The build of this site, 2026-10-18: the chapter page shows a "figure missing" note in their place.