try flat setup

Author: nikohansen

.github/workflows/python-package.yml

@@ -31,9 +31,7 @@ jobs:
         python -m pip install ruff
         if [ -f requirements.txt ]; then pip install -r requirements.txt; fi
         python -m pip install moarchiving
-        mkdir src
-        ln -s cma src/cma
-        python -m pip install .  # or install numpy and further dependencies?
+        python -m pip install . 
     - name: Lint with flake8
       run: |
         # stop the build if there are Python syntax errors or undefined names