feat: support SQL cells and pin dependencies in notebooks

[peter-gy]

Summary

The current https://marimo-team.github.io/quarto-marimo/ deployment omits the SQL tutorial. This PR adds support for sql cells and also ensures that the example notebook is Pyodide-compatible (uses pandas to read remote CSV instead of DuckDB which has no wasm build for HTTPFS ext).

Updates marimo copyright year as well to 2026.

Also fixes the plot tutorial notebook layout:

Current GH Pages

Fixed nb from localhost

Checklist

• Any AI-generated code has been reviewed line-by-line by the human PR author.
• Tests have been added or updated for the changes (where applicable).
• make lint and make test pass locally.
• Documentation / tutorials updated where relevant.

[Copilot]

Pull request overview

This PR updates the Quarto-marimo tutorial site to include the SQL tutorial again by adding SQL marimo-cell support in the engine/extractor, and updates multiple tutorials to marimo 0.23.1 with pinned (Pyodide-friendly) dependencies via pyproject frontmatter.

Changes:

• Add SQL marimo-cell detection (TS) and SQL→Python conversion during extraction (Python) so SQL cells can execute in the marimo engine flow.
• Update tutorials’ frontmatter (marimo version, headers, pyproject dependencies) and re-add SQL tutorial to navigation/rendering.
• Adjust project rendering configuration (_quarto.yml, make render) to render the whole project.

Reviewed changes

Copilot reviewed 21 out of 21 changed files in this pull request and generated 5 comments.

Show a summary per file

File	Description
tutorials/ui.qmd	Update marimo version/header and minor formatting changes.
tutorials/sql.qmd	Add pyproject dependencies and Pyodide-friendly CSV loading; tutorial formatting tweaks.
tutorials/plots.qmd	Add pyproject dependencies/header; update marimo version and formatting.
tutorials/markdown.qmd	Add pyproject dependencies/header; update marimo version and formatting.
tutorials/markdown_format.qmd	Add pyproject dependencies/header; update marimo version and formatting.
tutorials/layout.qmd	Update marimo version/header and formatting.
tutorials/intro.qmd	Update marimo version/header and formatting.
tutorials/index.qmd	Add copyright header; add SQL tutorial link; fix for-jupyter-users link.
tutorials/for_jupyter_users.qmd	Update marimo version/header and formatting.
tutorials/fileformat.qmd	Update marimo version/header; convert admonition syntax; formatting tweaks.
tutorials/external_dependencies.qmd	Add copyright header.
tutorials/example-pdf.qmd	Add copyright header.
tutorials/dataflow.qmd	Add pyproject dependencies/header; update marimo version and formatting.
tests/python/test_extract.py	Add unit tests for SQL conversion helper; update marimo-version stripping test.
tests/is-marimo-cell.test.ts	Add tests covering SQL marimo-cell detection.
tests/cell-execution-regex.test.ts	Add tests covering SQL fence regex variants.
Makefile	Make render run full quarto render; add preview to .PHONY.
lib/is-marimo-cell.ts	Recognize SQL marimo-cell languages (sql, sql.marimo).
lib/cell-execution-regex.ts	Extend marimo fence regex to match SQL variants.
_quarto.yml	Ensure tutorials (including SQL) are rendered; add SQL tutorial to sidebar.
_extensions/marimo/extract.py	Add SQL→Python conversion and apply it during pandoc export generation.

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[peter-gy]

this ensures that the config defined in _quarto.yml will be used to determine how to render full project.

[peter-gy]

DuckDB HTTPFS extension has no wasm build, so the remote CSV read will always err. to work around that, we load cars_df via a pd.read_csv call, because that's our most stable bet in Pyodide for fetching remote data.

[dmadisetti]

We can potentially patch for duckdb, we do a few other select patches: marimo-team/marimo#9413

[peter-gy]

ahh that would make a lot of sense. I'll take a stab at it.

[peter-gy]

marimo-team/marimo#9480

[Copilot]

Pull request overview

Copilot reviewed 21 out of 21 changed files in this pull request and generated 2 comments.

[dmadisetti]

Couple qs! But thanks! Looks like an oversight