ISC26: update index and setup header

common/setup.rst

@@ -2,14 +2,13 @@
 
    If you have not done the prior sections, you'll need to start the docker image::
 
-       docker run -it ghcr.io/spack/tutorial:sc25
+       docker run -it ghcr.io/spack/tutorial:isc26
 
    and then set Spack up like this::
 
        git clone --depth=2 --branch=releases/v1.2 https://github.com/spack/spack
        . spack/share/spack/setup-env.sh
-       spack repo update builtin --tag v2025.11.0
-       spack tutorial -y
+       spack mirror add --unsigned tutorial /mirror
        spack bootstrap now
        spack compiler find
 

index.rst

@@ -49,26 +49,26 @@ You can invoke
 
 .. code-block:: console
 
-   $ docker pull ghcr.io/spack/tutorial:sc25
-   $ docker run -it ghcr.io/spack/tutorial:sc25
+   $ docker pull ghcr.io/spack/tutorial:isc26
+   $ docker run -it ghcr.io/spack/tutorial:isc26
 
 to start using the container.
 You should now be ready to run through our demo scripts:
 
 #. :ref:`basics-tutorial`
 #. :ref:`environments-tutorial`
-#. :ref:`configs-tutorial`
 #. :ref:`packaging-tutorial`
 #. :ref:`stacks-tutorial`
 #. :ref:`developer-workflows-tutorial`
 #. :ref:`binary-cache-tutorial`
-#. :ref:`spack-scripting-tutorial`
 
 Other sections from past tutorials are also available, although they may not be kept up-to-date as frequently:
 
+#. :ref:`configs-tutorial`
 #. :ref:`modules-tutorial`
 #. :ref:`build-systems-tutorial`
 #. :ref:`advanced-packaging-tutorial`
+#. :ref:`spack-scripting-tutorial`
 
 Full contents:
 
@@ -84,17 +84,17 @@ Full contents:
 
    tutorial_basics
    tutorial_environments
-   tutorial_configuration
    tutorial_packaging
    tutorial_stacks
    tutorial_developer_workflows
    tutorial_binary_cache
-   tutorial_scripting
 
 .. toctree::
    :maxdepth: 3
    :caption: Additional sections
 
+   tutorial_configuration
    tutorial_modules
    tutorial_buildsystems
    tutorial_advanced_packaging
+   tutorial_scripting