Extra LaTeX packages

Custom templates often need LaTeX packages beyond the base image, like fonts, pgfplots or cancel. Declare them in the document frontmatter (or the branding note) as tlmgr package names:

---
nope-template: "[[my-template.tex]]"
nope-tlmgr: [cancel, pgfplots]
---

During the export, the pipeline installs missing packages into a persistent TeX user tree inside the build folder: the first run downloads them, every later run finds them on disk. The same mechanism serves plugin exports, the live preview, CI and standalone runs. No settings, no image rebuild.

\usepackage{tgbonum}   % declared via nope-tlmgr: [tex-gyre]

Cleanup build folder removes the tree. The next export re-installs what the document declares.

See it in action

The custom template demo flips a box from red to green when cancel is declared.