Port over circleci config - needs some pipefitting.

.circleci/config.yml

@@ -0,0 +1,45 @@
+version: 2.1
+
+jobs:
+
+  build-docs:
+    docker:
+      - image: cimg/python:3.12
+
+    steps:
+      - attach_workspace:
+          at: ~/
+
+      - checkout
+
+      - run:
+          name: Install CI dependencies
+          command: python -m pip install -r requirements.txt
+
+      - restore_cache:
+          keys:
+              - jupyter_ch
+
+      - run:
+          name: Build HTML rendering of notebooks
+          no_output_timeout: 30m
+          command: make SPHINXOPTS="-nWT --keep-going" html
+
+      - save_cache:
+          key: jupyter_ch
+          paths:
+            - _build/.jupyter_cache
+
+      - store_artifacts:
+          path: _build/html
+
+      - persist_to_workspace:
+          root: _build
+          paths:
+            - html
+
+workflows:
+  version: 2
+  default:
+    jobs:
+      - build-docs

.github/workflows/circleci-artifacts-redirector.yml

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+name: Run CircleCI asrtifacts redirector for rendered HTML
+on: [status]
+jobs:
+   circleci_artifacts_redirector_job:
+     runs-on: ubuntu-latest
+     name: Run CircleCI artifacts redirector
+     steps:
+       - name: GitHub Action step
+         uses: scientific-python/circleci-artifacts-redirector-action@4e13a10d89177f4bfc8007a7064bdbeda848d8d1  # v1.0.0
+         with:
+           repo-token: ${{ secrets.GITHUB_TOKEN }}
+           api-token: ${{ secrets.CIRCLE_TOKEN }}
+           artifact-path: 0/_build/html/index.html
+           circleci-jobs: build-docs