diff --git a/docs/source/developer_guide/index.rst b/docs/source/developer_guide/index.rst
index cfcc2284..88d56ab4 100644
--- a/docs/source/developer_guide/index.rst
+++ b/docs/source/developer_guide/index.rst
@@ -2,12 +2,22 @@
 Developer guide
 ===============
 
-Running the tests
+Automatic testing
 +++++++++++++++++
 
-AiiDA-KKR comes with a set of tests for its functionality. The tests are run through `pytest` and they are defined in `tests/` and the sub directories therein. 
+AiiDA-KKR comes with a set of tests for its functionality. The tests are run through ``pytest`` and they are defined in ``tests/`` and the sub directories therein. 
+The different tests are organized in the ``tests`` directory in the following structure:
 
-The following will discover and run the unit test::
+#. ``tests/``: files for common calcfunctions and workfunctions (i.e. not running any calculation of the plugin), tests for the entrypoints, common tools (e.g., ``plot_kkr``)
+#. ``tests/conftest.py`` and ``tests/dbsetup.py``: configuration of the test environment (setting up DB with codes etc.)
+#. ``tests/calculations/``: tests for calculations of the plugin (``VoronoiCalculation``, ``KkrCalculation``, ``KkrimpCalculation``, ``KkrnanoCalculation``)
+#. ``tests/cmdline/``: tests for command line interface
+#. ``tests/parsers/``: tests for calculation parsers
+#. ``tests/tools/``: tests for tools that are part of AiiDA-KKR
+#. ``tests/workflows/``: tests for the different workflows (using cached files for the calculations)
+#. ``tests/data_dir/``: export files of tests that ran which are imported when tests are run to be able to use caching of the calculation instead of rerunning them
+
+The following will run the unit tests::
 
     # install aiida-kkr with testing extra
     pip install -e .[testing]
@@ -18,11 +28,11 @@ The following will discover and run the unit test::
     # run tests (-h shows help)
     ./run_all.sh -h
     
-The coverage of the tests is controlled via environment variables (see `-h` option of `run_all.sh`), e.g.::
+The coverage of the tests is controlled via environment variables (see ``-h`` option of ``run_all.sh``), e.g.::
 
     RUN_VORONOI=1 RUN_KKRHOST=1 ./run_all.sh
     
-If you use aiida-core >= v2.0 you should first migrate the input data::
+If you use `aiida-core >= v2.0` you should first migrate the input data::
 
     python migrate_exports.py
     
@@ -34,12 +44,14 @@ In order to recreate test export files you need real executables instead of the
     # make sure the executables are found in the PATH
     cd jukkr && export PATH="$PWD:$PATH" && cd ..
     
-If your changes require updates to reference data (checked via the `pytest-regressions` package) you should add the `--force-regen` option to the pytest run::
+If your changes require updates to reference data (checked via the ``pytest-regressions`` package) you should add the ``--force-regen`` option to the pytest run::
 
     pytest --force-regen workflows/test_bs_wc.py
 
-Automatic coding style checks
-+++++++++++++++++++++++++++++
+
+
+Automatic linter and coding style checks
+++++++++++++++++++++++++++++++++++++++++
 
 Enable enable automatic checks of code sanity and coding style::
 
@@ -47,9 +59,7 @@ Enable enable automatic checks of code sanity and coding style::
     pre-commit install
 
 After this, the `yapf <https://github.com/google/yapf>`_ formatter,
-the `pylint <https://www.pylint.org/>`_ linter
-and the `pylint <https://www.pylint.org/>`_ code analyzer will
-run at every commit.
+the `pylint <https://www.pylint.org/>`_ linter and code analyzer will run at every commit.
 
 To run the pre-commit hooks without making a commit use::
 
@@ -68,6 +78,7 @@ Continuous integration
 #. run all tests for the ``django`` ORM
 #. build the documentation
 #. check coding style and version number (not required to pass by default)
+#. run CI tests
 
 Building the documentation
 ++++++++++++++++++++++++++
@@ -103,7 +114,7 @@ The latest release is therefore able to be installed via::
 
 .. note::
 
-   When updating the plugin package to a new version, remember to update the version number both in ``setup.json`` and ``aiida_kkr/__init__.py``.
+   When updating the plugin package to a new version, remember to update the version number both in ``pyproject.toml`` and ``aiida_kkr/__init__.py``.
 
 
 .. _ReadTheDocs: https://readthedocs.org/
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