update contributing

CONTRIBUTING.md

@@ -13,6 +13,19 @@ As such, any submission of contributions via merge requests is considered as agr
 
 ## Developing `pystencils-sfg`
 
+### Prequesites
+
+To develop pystencils-sfg, you will need at least these packages:
+
+ - Python 3.10
+ - Git
+ - A C++ compiler supporting at least C++20 (gcc >= 10, or clang >= 10)
+ - GNU Make
+ - CMake
+ - Nox
+
+Before continuing, make sure that the above packages are installed on your machine.
+
 ### Fork and Clone
 
 To work within the `pystencils-sfg` source tree, first create a *fork* of this repository
@@ -29,28 +42,29 @@ source .venv/bin/activate
 pip install -e .
 ```
 
+If you have [nox](https://nox.thea.codes/en/stable/) installed, you can also set up your virtual environment
+by running `nox --session dev_env`.
+
 ### Code Style and Type Checking
 
 To contribute, please adhere to the Python code style set by [PEP 8](https://peps.python.org/pep-0008/).
-For consistency, format all your source files using the [black](https://pypi.org/project/black/) formatter.
-Use flake8 to check your code style:
+For consistency, format all your source files using the [black](https://pypi.org/project/black/) formatter,
+and check them regularily using the `flake8` linter through Nox:
 
 ```shell
-flake8 src/pystencilssfg
+nox --session lint
 ```
 
 Further, `pystencils-sfg` is being fully type-checked using [MyPy](https://www.mypy-lang.org/).
 All submitted code should contain type annotations ([PEP 484](https://peps.python.org/pep-0484/)) and must be
 correctly statically typed.
-Before each commit, check your types by calling
+Regularily check your code for type errors using
 
 ```shell
-mypy src/pystencilssfg
+nox --session typecheck
 ```
 
 Both `flake8` and `mypy` are also run in the integration pipeline.
-You can automate the code quality checks by running them via a git pre-commit hook.
-Such a hook can be installed using the [`install_git_hooks.sh`](install_git_hooks.sh) script located at the project root.
 
 ### Test Your Code
 
@@ -65,3 +79,11 @@ In [tests/generator_scripts](tests/generator_scripts), a framework is provided t
 for successful execution, correctness, and compilability of their output.
 Read the documentation within [test_generator_scripts.py](tests/generator_scripts/test_generator_scripts.py)
 for more information.
+
+Run the test suite by calling it through Nox:
+
+```shell
+nox --session testsuite
+```
+
+This will also collect coverage information and produce a coverage report as a HTML site placed in the `htmlcov` folder.

noxfile.py

@@ -74,7 +74,7 @@ def docs(session: nox.Session):
 
 
 @nox.session()
-def dev(session: nox.Session):
+def dev_env(session: nox.Session):
     """Set up the development environment at .venv"""
 
     session.install("virtualenv")