diff --git a/.github/workflows/ci_tests_run_notebooks.yml b/.github/workflows/ci_tests_run_notebooks.yml
new file mode 100644
index 0000000..5f106c6
--- /dev/null
+++ b/.github/workflows/ci_tests_run_notebooks.yml
@@ -0,0 +1,77 @@
+name: Test notebooks
+
+on:
+  push:
+    branches:
+    - main
+  pull_request:
+    branches:
+    - main
+  schedule:
+    - cron: '0 5 * * 1'
+  workflow_dispatch:
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  tests:
+    # Do not run the test matrix on PRs affecting the rendering
+    if: ${{ !(github.event_name == 'pull_request') || !contains(github.event.pull_request.labels.*.name, 'html rendering / skip testing') }}
+
+    name: ${{ matrix.os }} ${{ matrix.name }}
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        # Run all supported OS for one Python version, then add a few extra scenarios
+        os: [ubuntu-latest, macos-latest, windows-latest]
+        python-version: ['3.12']
+        toxenv: [py312-test]
+        name: ['with Python 3.12',]
+
+        include:
+          - python-version: '3.10'
+            toxenv: py310-test-oldestdeps
+            name: with Python 3.10 and oldest versioned dependencies
+            os: ubuntu-latest
+
+          - python-version: '3.13'
+            toxenv: py313-test-devdeps
+            name: with Python 3.13 and developer versioned dependencies
+            os: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v4
+    - name: Set up Python ${{ matrix.python-version }}
+      uses: actions/setup-python@v5
+      with:
+        python-version: ${{ matrix.python-version }}
+
+    - name: Install dependencies
+      run: python -m pip install --upgrade tox
+
+    - name: Test with tox
+      run: tox ${{ matrix.toxargs }} -e ${{ matrix.toxenv }} -- ${{ matrix.toxposargs }}
+
+
+  gha_buildhtml:
+    # When label is used, we do run buildhtml on GHA to check if the publishing job will run or not.
+    # Use in case when new content has run into troubles on CircleCI.
+    if: ${{ (github.event_name == 'pull_request') && contains(github.event.pull_request.labels.*.name, 'GHA buildhtml') }}
+    name: Buildhtml testing
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Setup Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: '3.11'
+
+      - name: Install dependencies
+        run: python -m pip install --upgrade tox
+
+      - name: Execute notebooks as testing
+        run: tox -e py311-buildhtml
diff --git a/.gitignore b/.gitignore
index 9d64d4f..6154ca0 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,6 +1,10 @@
 _build/*
 .ipynb_checkpoints
 /.pixi/*
+# Notebooks are stored in the text-based Markdown format.
+# No .ipynb files should be stored in this repository.
+*.ipynb
+
 # We treat this repository as a library, not an application, and thus we do not
 # include the lockfile in source control. For a specific event, like a
 # workshop, we suggest committing the lockfile on a branch dedicated to the
diff --git a/requirements.txt b/requirements.txt
index df354a5..a1e6cc1 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -6,3 +6,8 @@ ipympl
 sphinx-copybutton
 # For tutorials
 matplotlib
+# for testing
+pytest
+nbval
+pytest-custom_exit_code
+jupytext
diff --git a/tox.ini b/tox.ini
new file mode 100644
index 0000000..81ee08a
--- /dev/null
+++ b/tox.ini
@@ -0,0 +1,53 @@
+[tox]
+envlist =
+    py{311, 312, 313}-test{,-oldestdeps,-devdeps,-predeps}{,-buildhtml}
+requires =
+    pip >= 19.3.1
+
+[testenv]
+
+description = run tests
+
+setenv =
+    devdeps: PIP_EXTRA_INDEX_URL =  https://pypi.anaconda.org/scientific-python-nightly-wheels/simple
+
+passenv = CI, CIRCLECI, GITHUB_EVENT_NAME, GITHUB_EVENT_PATH
+
+deps =
+    # We use these files to specify all the dependencies, and below we override
+    # versions for specific testing schenarios
+    -rrequirements.txt
+    #-rsite_requirements.txt
+    #-r.binder/requirements.txt
+
+    # Notebooks may set minimums for some dependencies, the others are set for a supported minimum
+    # following e.g. SPEC0 or some other considerations.
+    oldestdeps: numpy==1.24.0
+    oldestdeps: matplotlib==3.7.0
+
+    # TODO: add pure python dependency, so we can add an example for the github install
+    devdeps: git+https://github.com/astropy/pyvo.git#egg=pyvo
+
+allowlist_externals = bash, sed
+
+commands =
+    pip freeze
+
+    ## Some of the these could be factored out to a separate shell script,
+    ## but so far it's simple enought to keep it here.
+
+    # We only want to run CI in PRs for the notebooks we touched
+    !buildhtml: bash -c 'if [[ $GITHUB_EVENT_NAME == pull_request && -z "$(grep force_run:all_tests ${GITHUB_EVENT_PATH})" ]]; then git fetch origin main --depth=1; git diff origin/main --name-only tutorials | grep .md; else find tutorials -name "*.md"; fi | grep -vf ignore_testing | xargs jupytext --to notebook '
+
+    !buildhtml: pytest --nbval-lax -vv --suppress-no-test-exit-code --durations=10 tutorials
+
+    buildhtml: sphinx-build -b html . _build/html -nWT --keep-going
+    # SED magic to remove the toctree captions from the rendered index page while keeping them in the sidebar TOC
+    buildhtml: sed -E -i.bak '/caption-text/{N; s/.+caption-text.+\n<ul>/<ul>/; P;D;}' _build/html/index.html
+    buildhtml: bash -c 'rm _build/html/index.html.bak'
+
+pip_pre =
+    predeps: true
+    !predeps: false
+
+skip_install = true