diff --git a/.github/workflows/deploy.yml b/.github/workflows/deploy.yml
index b31df386..72cdb30a 100644
--- a/.github/workflows/deploy.yml
+++ b/.github/workflows/deploy.yml
@@ -31,7 +31,7 @@ jobs:
       run: |
         cp .ci_support/environment-old.yml environment.yml
         python .ci_support/release.py; cat pyproject.toml
-        git update-index --assume-unchanged pyproject.toml executorlib/_version.py
+        git update-index --assume-unchanged pyproject.toml src/executorlib/_version.py
         hatchling build -t sdist -t wheel
     - name: Publish distribution 📦 to PyPI
       uses: pypa/gh-action-pypi-publish@release/v1
diff --git a/.github/workflows/pipeline.yml b/.github/workflows/pipeline.yml
index 0d802faf..33cf959d 100644
--- a/.github/workflows/pipeline.yml
+++ b/.github/workflows/pipeline.yml
@@ -13,7 +13,7 @@ jobs:
     - uses: psf/black@stable
       with:
         options: "--check --diff"
-        src: ./${{ github.event.repository.name }}
+        src: ./src/${{ github.event.repository.name }}
 
   black_fix:  # in most cases pre-commit is faster
     needs: [black]
@@ -29,7 +29,7 @@ jobs:
       uses: psf/black@stable
       with:
         options: ""
-        src: "./${{ github.event.repository.name }}"
+        src: "./src/${{ github.event.repository.name }}"
     - name: commit
       run: |
         git config --local user.email "pyiron@mpie.de"
@@ -55,7 +55,7 @@ jobs:
       - name: Install mypy
         run: pip install mypy
       - name: Test
-        run: mypy --ignore-missing-imports ${{ github.event.repository.name }}
+        run: mypy --ignore-missing-imports src/${{ github.event.repository.name }}
 
   minimal:
     needs: [black]
@@ -451,7 +451,7 @@ jobs:
       timeout-minutes: 10
       run: |
         conda install -y pylint graphviz
-        pyreverse -o png -p ./${{ github.event.repository.name }} ./${{ github.event.repository.name }}
+        pyreverse -o png -p ./src/${{ github.event.repository.name }} ./src/${{ github.event.repository.name }}
         zip -m uml.zip *.png
     - uses: actions/upload-artifact@v4
       with:
diff --git a/pyproject.toml b/pyproject.toml
index 7008c472..7aa46043 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -103,26 +103,26 @@ ignore = [
 
 [tool.hatch.build]
 include = [
-    "executorlib"
+    "src/executorlib"
 ]
 
 [tool.hatch.build.hooks.vcs]
-version-file = "executorlib/_version.py"
+version-file = "src/executorlib/_version.py"
 
 [tool.hatch.build.targets.sdist]
 include = [
-    "executorlib"
+    "src/executorlib"
 ]
 
 [tool.hatch.build.targets.wheel]
 packages = [
-    "executorlib"
+    "src/executorlib"
 ]
 
 [tool.hatch.version]
 source = "vcs"
-path = "executorlib/_version.py"
+path = "src/executorlib/_version.py"
 
 [tool.coverage.run]
-omit = ["executorlib/_version.py", "tests/*"]
+source = ["executorlib"]
 command_line = "-m unittest discover tests"
diff --git a/executorlib/__init__.py b/src/executorlib/__init__.py
similarity index 100%
rename from executorlib/__init__.py
rename to src/executorlib/__init__.py
diff --git a/executorlib/_version.py b/src/executorlib/_version.py
similarity index 100%
rename from executorlib/_version.py
rename to src/executorlib/_version.py
diff --git a/executorlib/api.py b/src/executorlib/api.py
similarity index 100%
rename from executorlib/api.py
rename to src/executorlib/api.py
diff --git a/executorlib/backend/__init__.py b/src/executorlib/backend/__init__.py
similarity index 100%
rename from executorlib/backend/__init__.py
rename to src/executorlib/backend/__init__.py
diff --git a/executorlib/backend/cache_parallel.py b/src/executorlib/backend/cache_parallel.py
similarity index 100%
rename from executorlib/backend/cache_parallel.py
rename to src/executorlib/backend/cache_parallel.py
diff --git a/executorlib/backend/cache_serial.py b/src/executorlib/backend/cache_serial.py
similarity index 100%
rename from executorlib/backend/cache_serial.py
rename to src/executorlib/backend/cache_serial.py
diff --git a/executorlib/backend/interactive_parallel.py b/src/executorlib/backend/interactive_parallel.py
similarity index 100%
rename from executorlib/backend/interactive_parallel.py
rename to src/executorlib/backend/interactive_parallel.py
diff --git a/executorlib/backend/interactive_serial.py b/src/executorlib/backend/interactive_serial.py
similarity index 100%
rename from executorlib/backend/interactive_serial.py
rename to src/executorlib/backend/interactive_serial.py
diff --git a/executorlib/executor/__init__.py b/src/executorlib/executor/__init__.py
similarity index 100%
rename from executorlib/executor/__init__.py
rename to src/executorlib/executor/__init__.py
diff --git a/executorlib/executor/base.py b/src/executorlib/executor/base.py
similarity index 100%
rename from executorlib/executor/base.py
rename to src/executorlib/executor/base.py
diff --git a/executorlib/executor/flux.py b/src/executorlib/executor/flux.py
similarity index 100%
rename from executorlib/executor/flux.py
rename to src/executorlib/executor/flux.py
diff --git a/executorlib/executor/single.py b/src/executorlib/executor/single.py
similarity index 100%
rename from executorlib/executor/single.py
rename to src/executorlib/executor/single.py
diff --git a/executorlib/executor/slurm.py b/src/executorlib/executor/slurm.py
similarity index 100%
rename from executorlib/executor/slurm.py
rename to src/executorlib/executor/slurm.py
diff --git a/executorlib/standalone/__init__.py b/src/executorlib/standalone/__init__.py
similarity index 100%
rename from executorlib/standalone/__init__.py
rename to src/executorlib/standalone/__init__.py
diff --git a/executorlib/standalone/batched.py b/src/executorlib/standalone/batched.py
similarity index 100%
rename from executorlib/standalone/batched.py
rename to src/executorlib/standalone/batched.py
diff --git a/executorlib/standalone/command.py b/src/executorlib/standalone/command.py
similarity index 100%
rename from executorlib/standalone/command.py
rename to src/executorlib/standalone/command.py
diff --git a/executorlib/standalone/error.py b/src/executorlib/standalone/error.py
similarity index 100%
rename from executorlib/standalone/error.py
rename to src/executorlib/standalone/error.py
diff --git a/executorlib/standalone/hdf.py b/src/executorlib/standalone/hdf.py
similarity index 100%
rename from executorlib/standalone/hdf.py
rename to src/executorlib/standalone/hdf.py
diff --git a/executorlib/standalone/inputcheck.py b/src/executorlib/standalone/inputcheck.py
similarity index 100%
rename from executorlib/standalone/inputcheck.py
rename to src/executorlib/standalone/inputcheck.py
diff --git a/executorlib/standalone/interactive/__init__.py b/src/executorlib/standalone/interactive/__init__.py
similarity index 100%
rename from executorlib/standalone/interactive/__init__.py
rename to src/executorlib/standalone/interactive/__init__.py
diff --git a/executorlib/standalone/interactive/arguments.py b/src/executorlib/standalone/interactive/arguments.py
similarity index 100%
rename from executorlib/standalone/interactive/arguments.py
rename to src/executorlib/standalone/interactive/arguments.py
diff --git a/executorlib/standalone/interactive/backend.py b/src/executorlib/standalone/interactive/backend.py
similarity index 100%
rename from executorlib/standalone/interactive/backend.py
rename to src/executorlib/standalone/interactive/backend.py
diff --git a/executorlib/standalone/interactive/communication.py b/src/executorlib/standalone/interactive/communication.py
similarity index 100%
rename from executorlib/standalone/interactive/communication.py
rename to src/executorlib/standalone/interactive/communication.py
diff --git a/executorlib/standalone/interactive/spawner.py b/src/executorlib/standalone/interactive/spawner.py
similarity index 100%
rename from executorlib/standalone/interactive/spawner.py
rename to src/executorlib/standalone/interactive/spawner.py
diff --git a/executorlib/standalone/queue.py b/src/executorlib/standalone/queue.py
similarity index 100%
rename from executorlib/standalone/queue.py
rename to src/executorlib/standalone/queue.py
diff --git a/executorlib/standalone/scheduler.py b/src/executorlib/standalone/scheduler.py
similarity index 100%
rename from executorlib/standalone/scheduler.py
rename to src/executorlib/standalone/scheduler.py
diff --git a/executorlib/standalone/select.py b/src/executorlib/standalone/select.py
similarity index 100%
rename from executorlib/standalone/select.py
rename to src/executorlib/standalone/select.py
diff --git a/executorlib/standalone/serialize.py b/src/executorlib/standalone/serialize.py
similarity index 100%
rename from executorlib/standalone/serialize.py
rename to src/executorlib/standalone/serialize.py
diff --git a/executorlib/task_scheduler/__init__.py b/src/executorlib/task_scheduler/__init__.py
similarity index 100%
rename from executorlib/task_scheduler/__init__.py
rename to src/executorlib/task_scheduler/__init__.py
diff --git a/executorlib/task_scheduler/base.py b/src/executorlib/task_scheduler/base.py
similarity index 100%
rename from executorlib/task_scheduler/base.py
rename to src/executorlib/task_scheduler/base.py
diff --git a/executorlib/task_scheduler/file/__init__.py b/src/executorlib/task_scheduler/file/__init__.py
similarity index 100%
rename from executorlib/task_scheduler/file/__init__.py
rename to src/executorlib/task_scheduler/file/__init__.py
diff --git a/executorlib/task_scheduler/file/backend.py b/src/executorlib/task_scheduler/file/backend.py
similarity index 100%
rename from executorlib/task_scheduler/file/backend.py
rename to src/executorlib/task_scheduler/file/backend.py
diff --git a/executorlib/task_scheduler/file/shared.py b/src/executorlib/task_scheduler/file/shared.py
similarity index 100%
rename from executorlib/task_scheduler/file/shared.py
rename to src/executorlib/task_scheduler/file/shared.py
diff --git a/executorlib/task_scheduler/file/spawner_pysqa.py b/src/executorlib/task_scheduler/file/spawner_pysqa.py
similarity index 100%
rename from executorlib/task_scheduler/file/spawner_pysqa.py
rename to src/executorlib/task_scheduler/file/spawner_pysqa.py
diff --git a/executorlib/task_scheduler/file/spawner_subprocess.py b/src/executorlib/task_scheduler/file/spawner_subprocess.py
similarity index 100%
rename from executorlib/task_scheduler/file/spawner_subprocess.py
rename to src/executorlib/task_scheduler/file/spawner_subprocess.py
diff --git a/executorlib/task_scheduler/file/task_scheduler.py b/src/executorlib/task_scheduler/file/task_scheduler.py
similarity index 100%
rename from executorlib/task_scheduler/file/task_scheduler.py
rename to src/executorlib/task_scheduler/file/task_scheduler.py
diff --git a/executorlib/task_scheduler/interactive/__init__.py b/src/executorlib/task_scheduler/interactive/__init__.py
similarity index 100%
rename from executorlib/task_scheduler/interactive/__init__.py
rename to src/executorlib/task_scheduler/interactive/__init__.py
diff --git a/executorlib/task_scheduler/interactive/blockallocation.py b/src/executorlib/task_scheduler/interactive/blockallocation.py
similarity index 100%
rename from executorlib/task_scheduler/interactive/blockallocation.py
rename to src/executorlib/task_scheduler/interactive/blockallocation.py
diff --git a/executorlib/task_scheduler/interactive/dependency.py b/src/executorlib/task_scheduler/interactive/dependency.py
similarity index 100%
rename from executorlib/task_scheduler/interactive/dependency.py
rename to src/executorlib/task_scheduler/interactive/dependency.py
diff --git a/executorlib/task_scheduler/interactive/dependency_plot.py b/src/executorlib/task_scheduler/interactive/dependency_plot.py
similarity index 100%
rename from executorlib/task_scheduler/interactive/dependency_plot.py
rename to src/executorlib/task_scheduler/interactive/dependency_plot.py
diff --git a/executorlib/task_scheduler/interactive/onetoone.py b/src/executorlib/task_scheduler/interactive/onetoone.py
similarity index 100%
rename from executorlib/task_scheduler/interactive/onetoone.py
rename to src/executorlib/task_scheduler/interactive/onetoone.py
diff --git a/executorlib/task_scheduler/interactive/shared.py b/src/executorlib/task_scheduler/interactive/shared.py
similarity index 100%
rename from executorlib/task_scheduler/interactive/shared.py
rename to src/executorlib/task_scheduler/interactive/shared.py
diff --git a/executorlib/task_scheduler/interactive/spawner_flux.py b/src/executorlib/task_scheduler/interactive/spawner_flux.py
similarity index 100%
rename from executorlib/task_scheduler/interactive/spawner_flux.py
rename to src/executorlib/task_scheduler/interactive/spawner_flux.py
diff --git a/executorlib/task_scheduler/interactive/spawner_pysqa.py b/src/executorlib/task_scheduler/interactive/spawner_pysqa.py
similarity index 100%
rename from executorlib/task_scheduler/interactive/spawner_pysqa.py
rename to src/executorlib/task_scheduler/interactive/spawner_pysqa.py
diff --git a/executorlib/task_scheduler/interactive/spawner_slurm.py b/src/executorlib/task_scheduler/interactive/spawner_slurm.py
similarity index 100%
rename from executorlib/task_scheduler/interactive/spawner_slurm.py
rename to src/executorlib/task_scheduler/interactive/spawner_slurm.py
diff --git a/tests/test_standalone_interactive_communication.py b/tests/test_standalone_interactive_communication.py
index a644a42d..c1303068 100644
--- a/tests/test_standalone_interactive_communication.py
+++ b/tests/test_standalone_interactive_communication.py
@@ -49,6 +49,7 @@ def test_interface_mpi(self):
                         __file__,
                         "..",
                         "..",
+                        "src",
                         "executorlib",
                         "backend",
                         "interactive_parallel.py",
@@ -79,6 +80,7 @@ def test_interface_serial_without_debug(self):
                         __file__,
                         "..",
                         "..",
+                        "src",
                         "executorlib",
                         "backend",
                         "interactive_serial.py",
@@ -109,6 +111,7 @@ def test_interface_serial_with_debug(self):
                         __file__,
                         "..",
                         "..",
+                        "src",
                         "executorlib",
                         "backend",
                         "interactive_serial.py",
@@ -170,6 +173,7 @@ def test_interface_serial_with_stopped_process(self):
                         __file__,
                         "..",
                         "..",
+                        "src",
                         "executorlib",
                         "backend",
                         "interactive_serial.py",