feat: cythonise all sources #750

	name: Continuous Integration
	on:
	schedule:
	- cron: "0 0 * * 3"
	push:
	branches:
	- main
	pull_request:
	branches:
	- main
	paths:
	- .github/workflows/cis.yml
	- "src/**"
	- "tests/*"
	- pyproject.toml
	- tox.ini

	jobs:
	lint:
	name: Lint code
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v6
	- name: Set up Python
	uses: actions/setup-python@v6
	with:
	python-version: "3.12"
	- name: Install tools
	run: \|
	python -m pip install --upgrade pip
	python -m pip install tox
	- name: Linting
	env:
	TOXENV: lint
	run: \|
	tox

	tests:
	name: "Unit tests (Python ${{ matrix.python-version }}, ${{ matrix.pure_python && 'pure' \|\| 'cython' }})"
	runs-on: ubuntu-latest
	strategy:
	fail-fast: false
	matrix:
	python-version: ["3.11", "3.12", "3.13", "3.14"]
	pure_python: ["", "1"]
	steps:
	- uses: actions/checkout@v6
	- name: Get history and tags for SCM versioning to work
	run: \|
	git fetch --prune --unshallow
	git fetch --depth=1 origin +refs/tags/:refs/tags/
	- name: Set up Python ${{ matrix.python-version }}
	uses: actions/setup-python@v6
	with:
	python-version: ${{ matrix.python-version }}
	- name: Install dependencies
	run: \|
	python -m pip install --upgrade pip
	python -m pip install tox
	- name: Test
	env:
	BYTECODE_PURE_PYTHON: ${{ matrix.pure_python }}
	run: \|
	tox -e py$(echo '${{ matrix.python-version }}' \| tr -d .)
	- name: Upload coverage to Codecov
	uses: codecov/codecov-action@v6
	if: github.event_name != 'schedule'
	with:
	token: ${{ secrets.CODECOV_TOKEN }}
	name: codecov-umbrella
	fail_ci_if_error: true

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