Point the myst build at the QuantEcon theme release and refresh CI tooling

Theme: move site.template from the archived QuantEcon/quantecon-theme bundle
(main.zip) to a pinned quantecon-theme.mystmd release, v2.2.0 — the current
release, which carries the fancy-list rendering that pairs with the fork's
fancy-lists parser (qe-v8). Pinned rather than floating so a theme release
cannot change the build under us; bump the version in the URL to take a
newer one.

myst.yml also gets:

- project.github corrected to lecture-python-programming (it pointed at
  lecture-python-programming.myst, which only survives as a rename
  redirect). The theme derives the notebook-launch repo from this value
  plus a ".notebooks" suffix, so a stale name means broken launch buttons.
- toc brought back in line with _toc.yml: adds autodiff and the new polars
  lecture, drops the duplicate workspace entry from "Introduction to
  Python", and renames "The Scientific Libraries" to "Foundations of
  Scientific Computing".

CI: Node 20 -> 24 (the theme's .nvmrc; it runs as a Remix server during
`myst build --html`) and the remaining actions to current majors, which
also clears the Node 20 runtime deprecation warnings. Adds the JAX install
the jupyter-book 1.x workflow on main already does — without it the GPU
lectures execute to ModuleNotFoundError cells in the preview, which the
build does not fail on. Drops the unused configure-pages step; this job
deploys to Netlify, not Pages.

mystmd itself already comes from the QuantEcon fork's main branch, built
from source with bun, with quantecon/VERSION.yml logged for traceability.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

Author: mmcky

.github/workflows/build-ipynb.yml

@@ -8,16 +8,18 @@ jobs:
   build-ipynb:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v7
 
-      - uses: actions/setup-node@v4
+      # Node 24 matches the theme's .nvmrc (quantecon-theme.mystmd), which runs
+      # as a Remix server during `myst build --html`.
+      - uses: actions/setup-node@v7
         with:
-          node-version: '20'
+          node-version: '24'
 
       - uses: oven-sh/setup-bun@v2
 
       - name: Install Python
-        uses: actions/setup-python@v5
+        uses: actions/setup-python@v7
         with:
           python-version: '3.12'
           cache: 'pip'
@@ -84,7 +86,7 @@ jobs:
           "
 
       - name: Upload ipynb exports
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: ipynb-exports
           path: './lectures/exports/'

.github/workflows/ci.yml

@@ -6,25 +6,24 @@ jobs:
     steps:
       - uses: actions/checkout@v7
 
-      - name: Setup GitHub Pages
-        uses: actions/configure-pages@v3
-
       - name: Cache Notebook Execution
-        uses: actions/cache@v3
+        uses: actions/cache@v6
         id: cache-execution
         with:
           path: ./lectures/_build/execute
           key: ${{ runner.os }}-execute-cache-${{ hashFiles('lectures/**/*.md') }}
 
-      - uses: actions/setup-node@v4
+      # Node 24 matches the theme's .nvmrc (quantecon-theme.mystmd), which runs
+      # as a Remix server during `myst build --html`.
+      - uses: actions/setup-node@v7
         with:
-          node-version: '20'
+          node-version: '24'
 
       - uses: oven-sh/setup-bun@v2
 
       - name: Install Python
         if: steps.cache-execution.outputs.cache-hit != 'true'
-        uses: actions/setup-python@v5
+        uses: actions/setup-python@v7
         with:
           python-version: '3.12'
           cache: 'pip'
@@ -34,6 +33,15 @@ jobs:
         if: steps.cache-execution.outputs.cache-hit != 'true'
         run: python -m pip install -r myst_requirements.txt
 
+      # The GPU lectures (jax_intro, autodiff, numpy_vs_numba_vs_jax) need JAX
+      # on the g4dn runner — same install as the jupyter-book 1.x workflow on
+      # main. Without it those notebooks execute to ModuleNotFoundError cells.
+      - name: Install JAX
+        if: steps.cache-execution.outputs.cache-hit != 'true'
+        run: |
+          pip install -U "jax[cuda13]"
+          python scripts/test-jax-install.py
+
       - name: Install jupyter book 2.0
         run: pip install "jupyter-book>=2.0.0a0"
 

lectures/myst.yml

@@ -13,7 +13,10 @@ project:
         - Instructor for Ph.D. Advanced Macroeconomics, University of Minnesota.
       url: https://johnstachurski.net
       email: john.stachurski@gmail.com
-  github: https://github.com/QuantEcon/lecture-python-programming.myst
+  # The theme derives the notebook-launch repo from this (github + ".notebooks"),
+  # so it has to be the real repo name.
+  github: https://github.com/QuantEcon/lecture-python-programming
+  # Keep in sync with _toc.yml (the jupyter-book 1.x table of contents).
   toc:
     - file: intro.md
     - title: Introduction to Python
@@ -26,22 +29,23 @@ project:
         - file: oop_intro.md
         - file: names.md
         - file: python_oop.md
-        - file: workspace.md
-    - title: The Scientific Libraries
+    - title: Foundations of Scientific Computing
       children:
         - file: need_for_speed.md
         - file: numpy.md
         - file: matplotlib.md
         - file: scipy.md
-    - title: Working with Data
-      children:
-        - file: pandas.md
-        - file: pandas_panel.md
     - title: High Performance Computing
       children:
         - file: numba.md
         - file: jax_intro.md
         - file: numpy_vs_numba_vs_jax.md
+        - file: autodiff.md
+    - title: Working with Data
+      children:
+        - file: pandas.md
+        - file: pandas_panel.md
+        - file: polars.md
     - title: More Python Programming
       children:
         - file: writing_good_code.md
@@ -86,4 +90,7 @@ project:
 site:
   parts:
     footer: footer.md
-  template: https://github.com/QuantEcon/quantecon-theme/archive/refs/heads/main.zip
+  # Pinned theme release (see https://github.com/QuantEcon/quantecon-theme.mystmd/releases);
+  # bump the vX.Y.Z in this URL to take a new theme version. The old bundled
+  # QuantEcon/quantecon-theme repo is archived.
+  template: https://github.com/QuantEcon/quantecon-theme.mystmd/releases/download/v2.2.0/quantecon-theme.zip