Initial scaffolding

.gitattributes

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+# GitHub syntax highlighting
+pixi.lock linguist-language=YAML

.github/workflows/docs.yml

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+name: Docs
+on:
+  push:
+    branches:
+      - main
+    tags:
+      - "*"
+  pull_request:
+    paths:
+      - ".github/workflows/docs.yml"
+      - "docs/**"
+  workflow_dispatch:
+
+concurrency:
+  # Concurrency group that uses the workflow name and PR number if available
+  # or commit SHA as a fallback. If a new build is triggered under that
+  # concurrency group while a previous build is running it will be canceled.
+  # Repeated pushes to a PR will cancel all previous builds, while multiple
+  # merges to main will not cancel.
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.sha }}
+  cancel-in-progress: true
+
+jobs:
+  docs:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@a5ac7e51b41094c92402da3b24376905380afc29 # v4.1.6
+        with:
+          fetch-depth: 0
+      - uses: prefix-dev/setup-pixi@ba3bb36eb2066252b2363392b7739741bb777659 # v0.8.1
+        with:
+          environments: docs
+      - name: Setup project
+        run: |
+          pixi run --environment docs dev
+      - name: Build docs
+        run: pixi run docs
+      - name: Upload artifact
+        uses: actions/upload-pages-artifact@56afc609e74202658d3ffba0e8f6dda462b719fa # v3.0.1
+        with:
+          path: 'docs/_build/dirhtml'
+
+  pages:
+    runs-on: ubuntu-latest
+    if: github.ref == 'refs/heads/main'
+    needs: [docs]
+
+    # Sets permissions of the GITHUB_TOKEN to allow deployment to GitHub Pages
+    permissions:
+      contents: read
+      pages: write
+      id-token: write
+
+    environment:
+      name: github-pages
+      url: ${{ steps.deployment.outputs.page_url }}
+
+    steps:
+      - name: Deploy to GitHub Pages
+        id: deployment
+        uses: actions/deploy-pages@d6db90164ac5ed86f2b6aed7e0febac5b3c0c03e # v4.0.5

.github/workflows/pypi.yml

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+name: Publish to PyPI
+
+on:
+  pull_request:
+  push:
+    branches:
+      - main
+  release:
+    types:
+      - published
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@a5ac7e51b41094c92402da3b24376905380afc29 # v4.1.6
+        with:
+          fetch-tags: true
+          fetch-depth: 0
+
+      - name: Set up Python
+        uses: actions/setup-python@82c7e631bb3cdc910f68e0081d67478d79c6982d # v5.1.0
+        with:
+          python-version: "3.x"
+
+      - name: Install build tools
+        run: python -m pip install --upgrade pip wheel setuptools build twine
+
+      - name: Build wheels
+        run: python -m build --sdist --wheel . --outdir dist
+
+      - name: Check wheels
+        working-directory: dist
+        run: |
+          ls -alh
+          python -m pip install *.whl
+          python -m twine check *
+
+      - name: Upload release distributions
+        uses: actions/upload-artifact@65462800fd760344b1a7b4382951275a0abb4808 # v4.3.3
+        with:
+          name: release-dists
+          path: dist/
+
+  publish:
+    runs-on: ubuntu-latest
+    if: github.event_name == 'release'
+    needs: [build]
+    permissions:
+      id-token: write
+
+    steps:
+      - name: Retrieve release distributions
+        uses: actions/download-artifact@65a9edc5881444af0b9093a5e628f2fe47ea3b2e # v4.1.7
+        with:
+          name: release-dists
+          path: dist/
+      - name: Publish release distributions to PyPI
+        uses: pypa/gh-action-pypi-publish@81e9d935c883d0b210363ab89cf05f3894778450 # v1.8.14

.github/workflows/test.yml

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+name: Test
+on:
+  push:
+    branches:
+      - main
+    tags:
+      - "*"
+  pull_request:
+    paths:
+      - ".github/workflows/test.yml"
+      - "conda_spawn/**"
+      - "tests/**"
+      - "pyproject.toml"
+      - "pixi.toml"
+
+concurrency:
+  # Concurrency group that uses the workflow name and PR number if available
+  # or commit SHA as a fallback. If a new build is triggered under that
+  # concurrency group while a previous build is running it will be canceled.
+  # Repeated pushes to a PR will cancel all previous builds, while multiple
+  # merges to main will not cancel.
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.sha }}
+  cancel-in-progress: true
+
+jobs:
+  tests:
+    name: ${{ matrix.os }}, py${{ matrix.python-version }}
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-latest, windows-latest]
+        python-version: ["38", "39", "310", "311"]
+        include:
+          - os: macos-13
+            python-version: "310"
+          - os: macos-14
+            python-version: "311"
+    env:
+      PIXI_ENV_NAME: test-py${{ matrix.python-version }}
+    steps:
+      - uses: actions/checkout@a5ac7e51b41094c92402da3b24376905380afc29 # v4.1.6
+        with:
+          fetch-depth: 0
+      - uses: prefix-dev/setup-pixi@ba3bb36eb2066252b2363392b7739741bb777659 # v0.8.1
+        with:
+          environments: ${{ env.PIXI_ENV_NAME }}
+      - name: Setup project
+        run: |
+          pixi run --environment ${{ env.PIXI_ENV_NAME }} dev
+          echo "channels: [conda-forge]" > .pixi/envs/${{ env.PIXI_ENV_NAME }}/.condarc
+          pixi run --environment ${{ env.PIXI_ENV_NAME }} conda info
+      - name: Run tests
+        run: pixi run --environment ${{ env.PIXI_ENV_NAME }} test --basetemp=${{ runner.os == 'Windows' && 'D:\\temp' || runner.temp }}
+
+  build-conda:
+    name: Build conda package (${{ matrix.os }})
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-latest, windows-latest, macos-13, macos-14]
+    env:
+      PYTHONUNBUFFERED: "1"
+    steps:
+      - uses: actions/checkout@a5ac7e51b41094c92402da3b24376905380afc29 # v4.1.6
+        with:
+          fetch-depth: 0
+      - uses: prefix-dev/setup-pixi@ba3bb36eb2066252b2363392b7739741bb777659 # v0.8.1
+        with:
+          environments: build
+      - name: Setup project
+        run: |
+          pixi run --environment build dev
+      - name: Build recipe
+        run: pixi run --environment build build
+

.gitignore

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+# Byte-compiled / optimized / DLL files
+__pycache__/
+*.py[cod]
+*$py.class
+
+# C extensions
+*.so
+
+# Distribution / packaging
+.Python
+build/
+develop-eggs/
+dist/
+downloads/
+eggs/
+.eggs/
+lib/
+lib64/
+parts/
+sdist/
+var/
+wheels/
+pip-wheel-metadata/
+share/python-wheels/
+*.egg-info/
+.installed.cfg
+*.egg
+MANIFEST
+
+# PyInstaller
+#  Usually these files are written by a python script from a template
+#  before PyInstaller builds the exe, so as to inject date/other infos into it.
+*.manifest
+*.spec
+
+# Installer logs
+pip-log.txt
+pip-delete-this-directory.txt
+
+# Unit test / coverage reports
+htmlcov/
+.tox/
+.nox/
+.coverage
+.coverage.*
+.cache
+nosetests.xml
+coverage.xml
+*.cover
+*.py,cover
+.hypothesis/
+.pytest_cache/
+
+# Translations
+*.mo
+*.pot
+
+# Django stuff:
+*.log
+local_settings.py
+db.sqlite3
+db.sqlite3-journal
+
+# Flask stuff:
+instance/
+.webassets-cache
+
+# Scrapy stuff:
+.scrapy
+
+# Sphinx documentation
+docs/_build/
+
+# PyBuilder
+target/
+
+# Jupyter Notebook
+.ipynb_checkpoints
+
+# IPython
+profile_default/
+ipython_config.py
+
+# pyenv
+.python-version
+
+# pipenv
+#   According to pypa/pipenv#598, it is recommended to include Pipfile.lock in version control.
+#   However, in case of collaboration, if having platform-specific dependencies or dependencies
+#   having no cross-platform support, pipenv may install dependencies that don't work, or not
+#   install all needed dependencies.
+#Pipfile.lock
+
+# PEP 582; used by e.g. github.com/David-OConnor/pyflow
+__pypackages__/
+
+# Celery stuff
+celerybeat-schedule
+celerybeat.pid
+
+# SageMath parsed files
+*.sage.py
+
+# Environments
+.env
+.venv
+env/
+venv/
+ENV/
+env.bak/
+venv.bak/
+
+# Spyder project settings
+.spyderproject
+.spyproject
+
+# Rope project settings
+.ropeproject
+
+# mkdocs documentation
+/site
+
+# mypy
+.mypy_cache/
+.dmypy.json
+dmypy.json
+
+# Pyre type checker
+.pyre/
+
+# pixi
+.pixi/
+
+# Used in debugging
+explicit.txt
+# pip editable clones stuff here
+src/
+
+# hatch-vcs
+conda_spawn/_version.py