LaTeX

Inline math works with (e^{i\pi} + 1 = 0). Display equations work too:

[ \int_0^1 x^2\,dx = \frac{1}{3} ]

Mermaid

flowchart LR
  A[Markdown] --> B[Jekyll]
  B --> C[Static HTML]
  C --> D[Browser interactivity]
  

Vega-Lite

The specification is stored at assets/data/example-vega.json and loaded by a reusable include.

Plotly

Plotly figures use the same pattern: a versioned browser library plus a local JSON figure.

Authoring pattern

Enable only what a page needs in its front matter:

math: true
mermaid: true
vega_lite: true
plotly: true

For interactive data, keep the data and specification reviewable in the repository. Heavy computation should happen before publishing, with the generated artifact and its provenance linked from the post.