diff --git a/.github/workflows/linting-common.yml b/.github/workflows/linting-common.yml
index 089b79a6..4789752c 100644
--- a/.github/workflows/linting-common.yml
+++ b/.github/workflows/linting-common.yml
@@ -4,16 +4,13 @@ on:
   pull_request:
     paths:
       - 'icij-common/**.py'
-  push:
-    paths:
-      - 'icij-common/**.py'
+      - '.github/workflows/tests-common.yml'
 
-# TODO: leverage some caching here
 jobs:
   linting-test-icij-common:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: ./.github/actions/pylint
         with:
-          path: icij-common
\ No newline at end of file
+          path: icij-common
diff --git a/.github/workflows/linting-worker.yml b/.github/workflows/linting-worker.yml
index 40aa3169..ae6ce62e 100644
--- a/.github/workflows/linting-worker.yml
+++ b/.github/workflows/linting-worker.yml
@@ -13,7 +13,7 @@ jobs:
   linting-test-icij-worker:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: ./.github/actions/pylint
         with:
-          path: icij-worker
\ No newline at end of file
+          path: icij-worker
diff --git a/.github/workflows/publish-common.yml b/.github/workflows/publish-common.yml
new file mode 100644
index 00000000..b8fdd5a3
--- /dev/null
+++ b/.github/workflows/publish-common.yml
@@ -0,0 +1,30 @@
+name: Publish icij-common
+
+on:
+  push:
+    tags:
+      - icij-common-*
+
+jobs:
+  publish-icij-common:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Install poetry
+        run: pipx install poetry
+      - name: Setup Python project
+        uses: actions/setup-python@v5
+        with:
+          python-version: 3.9
+          cache: poetry
+      - name: Install Python project
+        run: cd icij-common && poetry install --with dev --sync
+      # We assume tests have run in a previous workflow and just build and publish
+      - name: Build and publish
+        env:
+          PYPI_API_TOKEN: ${{ secrets.PYPI_API_TOKEN }}
+        run: |
+          cd icij-common
+          poetry build
+          poetry config pypi-token.pypi {{ env.PYPI_API_TOKEN }}
+          poetry publish
diff --git a/.github/workflows/publish-worker.yml b/.github/workflows/publish-worker.yml
new file mode 100644
index 00000000..b644807a
--- /dev/null
+++ b/.github/workflows/publish-worker.yml
@@ -0,0 +1,30 @@
+name: Publish icij-worker
+
+on:
+  push:
+    tags:
+      - icij-worker-*
+
+jobs:
+  publish-icij-worker:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Install poetry
+        run: pipx install poetry
+      - name: Setup Python project
+        uses: actions/setup-python@v5
+        with:
+          python-version: 3.9
+          cache: poetry
+      - name: Install Python project
+        run: cd icij-worker && poetry install --with dev --sync
+      # We assume tests have run in a previous workflow and just build and publish
+      - name: Build and publish
+        env:
+          PYPI_API_TOKEN: ${{ secrets.PYPI_API_TOKEN }}
+        run: |
+          cd icij-worker
+          poetry build
+          poetry config pypi-token.pypi {{ env.PYPI_API_TOKEN }}
+          poetry publish
diff --git a/.github/workflows/tests-common.yml b/.github/workflows/tests-common.yml
new file mode 100644
index 00000000..4a13ef0a
--- /dev/null
+++ b/.github/workflows/tests-common.yml
@@ -0,0 +1,42 @@
+name: Test for icij-common
+
+on:
+  pull_request:
+    paths:
+      - 'icij-common/**.py'
+      - '.github/workflows/tests-common.yml'
+
+jobs:
+  test-icij-common:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Install poetry
+        run: pipx install poetry
+      - name: Setup Python project
+        uses: actions/setup-python@v5
+        with:
+          # TODO: use a version matrix here
+          python-version: 3.9
+          cache: poetry
+      - name: Install Python project
+        run: cd icij-common && poetry install -v --with dev --sync
+      - name: Run tests
+        run: |
+          cd icij-common
+          poetry run python -m pytest -vvv --cache-clear --show-capture=all -r A .
+    services:
+      neo4j:
+        image: neo4j:4.4.17
+        env:
+          NEO4J_AUTH: neo4j/theneo4jpassword
+          NEO4JLABS_PLUGINS: '["apoc"]'
+        options: >-
+          --health-cmd "cypher-shell -u neo4j -p theneo4jpassword -d neo4j 'CALL db.ping()'"
+          --health-interval 2s
+          --health-timeout 2s
+          --health-retries 10
+          --health-start-period 20s
+        ports:
+          - 7475:7474
+          - 7688:7687
diff --git a/.github/workflows/tests-worker.yml b/.github/workflows/tests-worker.yml
new file mode 100644
index 00000000..06153641
--- /dev/null
+++ b/.github/workflows/tests-worker.yml
@@ -0,0 +1,41 @@
+name: Test for icij-worker
+
+on:
+  pull_request:
+    paths:
+      - 'icij-worker/**.py'
+      - '.github/workflows/tests-worker.yml'
+
+jobs:
+  test-icij-worker:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Install poetry
+        run: pipx install poetry
+      - name: Setup Python project
+        uses: actions/setup-python@v5
+        with:
+          # TODO: use a version matrix here
+          python-version: 3.9
+          cache: poetry
+      - run: cd icij-worker && poetry install -v --with dev --sync
+      - name: Run tests
+        run: |
+          cd icij-worker
+          poetry run python -m pytest -vvv --cache-clear --show-capture=all -r A .
+    services:
+      neo4j:
+        image: neo4j:4.4.17
+        env:
+          NEO4J_AUTH: neo4j/theneo4jpassword
+          NEO4JLABS_PLUGINS: '["apoc"]'
+        options: >-
+          --health-cmd "cypher-shell -u neo4j -p theneo4jpassword -d neo4j 'CALL db.ping()'"
+          --health-interval 2s
+          --health-timeout 2s
+          --health-retries 10
+          --health-start-period 20s
+        ports:
+          - 7475:7474
+          - 7688:7687
diff --git a/README.md b/README.md
index 6d078580..a1bcdb9e 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,5 @@
-# Monorepository for ICIJ's Python libraries
+# Monorepo for ICIJ Python libs
 
-## Libraries
-- [icij-common](icij-common)
-- [icij-worker](icij-worker)
\ No newline at end of file
+## [icij-common](icij-common) [![Test for icij-common](https://github.com/ICIJ/icij-python/actions/workflows/tests-common.yml/badge.svg)](https://github.com/ICIJ/icij-python/actions/workflows/tests-common.yml)
+
+## [icij-worker](icij-worker) [![Test for icij-worker](https://github.com/ICIJ/icij-python/actions/workflows/tests-worker.yml/badge.svg)](https://github.com/ICIJ/icij-python/actions/workflows/tests-worker.yml)
diff --git a/icij-common/.gitignore b/icij-common/.gitignore
deleted file mode 100644
index d27abdcf..00000000
--- a/icij-common/.gitignore
+++ /dev/null
@@ -1 +0,0 @@
-poetry.lock
\ No newline at end of file
diff --git a/icij-common/poetry.lock b/icij-common/poetry.lock
new file mode 100644
index 00000000..72bd4ed8
--- /dev/null
+++ b/icij-common/poetry.lock
@@ -0,0 +1,321 @@
+# This file is automatically @generated by Poetry 1.5.1 and should not be changed by hand.
+
+[[package]]
+name = "astroid"
+version = "3.1.0"
+description = "An abstract syntax tree for Python with inference support."
+optional = false
+python-versions = ">=3.8.0"
+files = [
+    {file = "astroid-3.1.0-py3-none-any.whl", hash = "sha256:951798f922990137ac090c53af473db7ab4e70c770e6d7fae0cec59f74411819"},
+    {file = "astroid-3.1.0.tar.gz", hash = "sha256:ac248253bfa4bd924a0de213707e7ebeeb3138abeb48d798784ead1e56d419d4"},
+]
+
+[package.dependencies]
+typing-extensions = {version = ">=4.0.0", markers = "python_version < \"3.11\""}
+
+[[package]]
+name = "colorama"
+version = "0.4.6"
+description = "Cross-platform colored terminal text."
+optional = false
+python-versions = "!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*,!=3.4.*,!=3.5.*,!=3.6.*,>=2.7"
+files = [
+    {file = "colorama-0.4.6-py2.py3-none-any.whl", hash = "sha256:4f1d9991f5acc0ca119f9d443620b77f9d6b33703e51011c16baf57afb285fc6"},
+    {file = "colorama-0.4.6.tar.gz", hash = "sha256:08695f5cb7ed6e0531a20572697297273c47b8cae5a63ffc6d6ed5c201be6e44"},
+]
+
+[[package]]
+name = "dill"
+version = "0.3.8"
+description = "serialize all of Python"
+optional = false
+python-versions = ">=3.8"
+files = [
+    {file = "dill-0.3.8-py3-none-any.whl", hash = "sha256:c36ca9ffb54365bdd2f8eb3eff7d2a21237f8452b57ace88b1ac615b7e815bd7"},
+    {file = "dill-0.3.8.tar.gz", hash = "sha256:3ebe3c479ad625c4553aca177444d89b486b1d84982eeacded644afc0cf797ca"},
+]
+
+[package.extras]
+graph = ["objgraph (>=1.7.2)"]
+profile = ["gprof2dot (>=2022.7.29)"]
+
+[[package]]
+name = "exceptiongroup"
+version = "1.2.0"
+description = "Backport of PEP 654 (exception groups)"
+optional = false
+python-versions = ">=3.7"
+files = [
+    {file = "exceptiongroup-1.2.0-py3-none-any.whl", hash = "sha256:4bfd3996ac73b41e9b9628b04e079f193850720ea5945fc96a08633c66912f14"},
+    {file = "exceptiongroup-1.2.0.tar.gz", hash = "sha256:91f5c769735f051a4290d52edd0858999b57e5876e9f85937691bd4c9fa3ed68"},
+]
+
+[package.extras]
+test = ["pytest (>=6)"]
+
+[[package]]
+name = "iniconfig"
+version = "2.0.0"
+description = "brain-dead simple config-ini parsing"
+optional = false
+python-versions = ">=3.7"
+files = [
+    {file = "iniconfig-2.0.0-py3-none-any.whl", hash = "sha256:b6a85871a79d2e3b22d2d1b94ac2824226a63c6b741c88f7ae975f18b6778374"},
+    {file = "iniconfig-2.0.0.tar.gz", hash = "sha256:2d91e135bf72d31a410b17c16da610a82cb55f6b0477d1a902134b24a455b8b3"},
+]
+
+[[package]]
+name = "isort"
+version = "5.13.2"
+description = "A Python utility / library to sort Python imports."
+optional = false
+python-versions = ">=3.8.0"
+files = [
+    {file = "isort-5.13.2-py3-none-any.whl", hash = "sha256:8ca5e72a8d85860d5a3fa69b8745237f2939afe12dbf656afbcb47fe72d947a6"},
+    {file = "isort-5.13.2.tar.gz", hash = "sha256:48fdfcb9face5d58a4f6dde2e72a1fb8dcaf8ab26f95ab49fab84c2ddefb0109"},
+]
+
+[package.extras]
+colors = ["colorama (>=0.4.6)"]
+
+[[package]]
+name = "mccabe"
+version = "0.7.0"
+description = "McCabe checker, plugin for flake8"
+optional = false
+python-versions = ">=3.6"
+files = [
+    {file = "mccabe-0.7.0-py2.py3-none-any.whl", hash = "sha256:6c2d30ab6be0e4a46919781807b4f0d834ebdd6c6e3dca0bda5a15f863427b6e"},
+    {file = "mccabe-0.7.0.tar.gz", hash = "sha256:348e0240c33b60bbdf4e523192ef919f28cb2c3d7d5c7794f74009290f236325"},
+]
+
+[[package]]
+name = "neo4j"
+version = "5.18.0"
+description = "Neo4j Bolt driver for Python"
+optional = false
+python-versions = ">=3.7"
+files = [
+    {file = "neo4j-5.18.0.tar.gz", hash = "sha256:4014406ae5b8b485a8ba46c9f00b6f5b4aaf88e7c3a50603445030c2aab701c9"},
+]
+
+[package.dependencies]
+pytz = "*"
+
+[package.extras]
+numpy = ["numpy (>=1.7.0,<2.0.0)"]
+pandas = ["numpy (>=1.7.0,<2.0.0)", "pandas (>=1.1.0,<3.0.0)"]
+pyarrow = ["pyarrow (>=1.0.0)"]
+
+[[package]]
+name = "packaging"
+version = "24.0"
+description = "Core utilities for Python packages"
+optional = false
+python-versions = ">=3.7"
+files = [
+    {file = "packaging-24.0-py3-none-any.whl", hash = "sha256:2ddfb553fdf02fb784c234c7ba6ccc288296ceabec964ad2eae3777778130bc5"},
+    {file = "packaging-24.0.tar.gz", hash = "sha256:eb82c5e3e56209074766e6885bb04b8c38a0c015d0a30036ebe7ece34c9989e9"},
+]
+
+[[package]]
+name = "platformdirs"
+version = "4.2.0"
+description = "A small Python package for determining appropriate platform-specific dirs, e.g. a \"user data dir\"."
+optional = false
+python-versions = ">=3.8"
+files = [
+    {file = "platformdirs-4.2.0-py3-none-any.whl", hash = "sha256:0614df2a2f37e1a662acbd8e2b25b92ccf8632929bc6d43467e17fe89c75e068"},
+    {file = "platformdirs-4.2.0.tar.gz", hash = "sha256:ef0cc731df711022c174543cb70a9b5bd22e5a9337c8624ef2c2ceb8ddad8768"},
+]
+
+[package.extras]
+docs = ["furo (>=2023.9.10)", "proselint (>=0.13)", "sphinx (>=7.2.6)", "sphinx-autodoc-typehints (>=1.25.2)"]
+test = ["appdirs (==1.4.4)", "covdefaults (>=2.3)", "pytest (>=7.4.3)", "pytest-cov (>=4.1)", "pytest-mock (>=3.12)"]
+
+[[package]]
+name = "pluggy"
+version = "1.4.0"
+description = "plugin and hook calling mechanisms for python"
+optional = false
+python-versions = ">=3.8"
+files = [
+    {file = "pluggy-1.4.0-py3-none-any.whl", hash = "sha256:7db9f7b503d67d1c5b95f59773ebb58a8c1c288129a88665838012cfb07b8981"},
+    {file = "pluggy-1.4.0.tar.gz", hash = "sha256:8c85c2876142a764e5b7548e7d9a0e0ddb46f5185161049a79b7e974454223be"},
+]
+
+[package.extras]
+dev = ["pre-commit", "tox"]
+testing = ["pytest", "pytest-benchmark"]
+
+[[package]]
+name = "pydantic"
+version = "1.10.14"
+description = "Data validation and settings management using python type hints"
+optional = false
+python-versions = ">=3.7"
+files = [
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+    {file = "pydantic-1.10.14-cp39-cp39-macosx_10_9_x86_64.whl", hash = "sha256:c66609e138c31cba607d8e2a7b6a5dc38979a06c900815495b2d90ce6ded35b4"},
+    {file = "pydantic-1.10.14-cp39-cp39-macosx_11_0_arm64.whl", hash = "sha256:d986e115e0b39604b9eee3507987368ff8148222da213cd38c359f6f57b3b347"},
+    {file = "pydantic-1.10.14-cp39-cp39-manylinux_2_17_x86_64.manylinux2014_x86_64.whl", hash = "sha256:646b2b12df4295b4c3148850c85bff29ef6d0d9621a8d091e98094871a62e5c7"},
+    {file = "pydantic-1.10.14-cp39-cp39-manylinux_2_5_i686.manylinux1_i686.manylinux_2_17_i686.manylinux2014_i686.whl", hash = "sha256:282613a5969c47c83a8710cc8bfd1e70c9223feb76566f74683af889faadc0ea"},
+    {file = "pydantic-1.10.14-cp39-cp39-musllinux_1_1_i686.whl", hash = "sha256:466669501d08ad8eb3c4fecd991c5e793c4e0bbd62299d05111d4f827cded64f"},
+    {file = "pydantic-1.10.14-cp39-cp39-musllinux_1_1_x86_64.whl", hash = "sha256:13e86a19dca96373dcf3190fcb8797d40a6f12f154a244a8d1e8e03b8f280593"},
+    {file = "pydantic-1.10.14-cp39-cp39-win_amd64.whl", hash = "sha256:08b6ec0917c30861e3fe71a93be1648a2aa4f62f866142ba21670b24444d7fd8"},
+    {file = "pydantic-1.10.14-py3-none-any.whl", hash = "sha256:8ee853cd12ac2ddbf0ecbac1c289f95882b2d4482258048079d13be700aa114c"},
+    {file = "pydantic-1.10.14.tar.gz", hash = "sha256:46f17b832fe27de7850896f3afee50ea682220dd218f7e9c88d436788419dca6"},
+]
+
+[package.dependencies]
+typing-extensions = ">=4.2.0"
+
+[package.extras]
+dotenv = ["python-dotenv (>=0.10.4)"]
+email = ["email-validator (>=1.0.3)"]
+
+[[package]]
+name = "pylint"
+version = "3.1.0"
+description = "python code static checker"
+optional = false
+python-versions = ">=3.8.0"
+files = [
+    {file = "pylint-3.1.0-py3-none-any.whl", hash = "sha256:507a5b60953874766d8a366e8e8c7af63e058b26345cfcb5f91f89d987fd6b74"},
+    {file = "pylint-3.1.0.tar.gz", hash = "sha256:6a69beb4a6f63debebaab0a3477ecd0f559aa726af4954fc948c51f7a2549e23"},
+]
+
+[package.dependencies]
+astroid = ">=3.1.0,<=3.2.0-dev0"
+colorama = {version = ">=0.4.5", markers = "sys_platform == \"win32\""}
+dill = [
+    {version = ">=0.2", markers = "python_version < \"3.11\""},
+    {version = ">=0.3.6", markers = "python_version >= \"3.11\""},
+    {version = ">=0.3.7", markers = "python_version >= \"3.12\""},
+]
+isort = ">=4.2.5,<5.13.0 || >5.13.0,<6"
+mccabe = ">=0.6,<0.8"
+platformdirs = ">=2.2.0"
+tomli = {version = ">=1.1.0", markers = "python_version < \"3.11\""}
+tomlkit = ">=0.10.1"
+typing-extensions = {version = ">=3.10.0", markers = "python_version < \"3.10\""}
+
+[package.extras]
+spelling = ["pyenchant (>=3.2,<4.0)"]
+testutils = ["gitpython (>3)"]
+
+[[package]]
+name = "pytest"
+version = "7.4.4"
+description = "pytest: simple powerful testing with Python"
+optional = false
+python-versions = ">=3.7"
+files = [
+    {file = "pytest-7.4.4-py3-none-any.whl", hash = "sha256:b090cdf5ed60bf4c45261be03239c2c1c22df034fbffe691abe93cd80cea01d8"},
+    {file = "pytest-7.4.4.tar.gz", hash = "sha256:2cf0005922c6ace4a3e2ec8b4080eb0d9753fdc93107415332f50ce9e7994280"},
+]
+
+[package.dependencies]
+colorama = {version = "*", markers = "sys_platform == \"win32\""}
+exceptiongroup = {version = ">=1.0.0rc8", markers = "python_version < \"3.11\""}
+iniconfig = "*"
+packaging = "*"
+pluggy = ">=0.12,<2.0"
+tomli = {version = ">=1.0.0", markers = "python_version < \"3.11\""}
+
+[package.extras]
+testing = ["argcomplete", "attrs (>=19.2.0)", "hypothesis (>=3.56)", "mock", "nose", "pygments (>=2.7.2)", "requests", "setuptools", "xmlschema"]
+
+[[package]]
+name = "pytest-asyncio"
+version = "0.20.3"
+description = "Pytest support for asyncio"
+optional = false
+python-versions = ">=3.7"
+files = [
+    {file = "pytest-asyncio-0.20.3.tar.gz", hash = "sha256:83cbf01169ce3e8eb71c6c278ccb0574d1a7a3bb8eaaf5e50e0ad342afb33b36"},
+    {file = "pytest_asyncio-0.20.3-py3-none-any.whl", hash = "sha256:f129998b209d04fcc65c96fc85c11e5316738358909a8399e93be553d7656442"},
+]
+
+[package.dependencies]
+pytest = ">=6.1.0"
+
+[package.extras]
+docs = ["sphinx (>=5.3)", "sphinx-rtd-theme (>=1.0)"]
+testing = ["coverage (>=6.2)", "flaky (>=3.5.0)", "hypothesis (>=5.7.1)", "mypy (>=0.931)", "pytest-trio (>=0.7.0)"]
+
+[[package]]
+name = "pytz"
+version = "2024.1"
+description = "World timezone definitions, modern and historical"
+optional = false
+python-versions = "*"
+files = [
+    {file = "pytz-2024.1-py2.py3-none-any.whl", hash = "sha256:328171f4e3623139da4983451950b28e95ac706e13f3f2630a879749e7a8b319"},
+    {file = "pytz-2024.1.tar.gz", hash = "sha256:2a29735ea9c18baf14b448846bde5a48030ed267578472d8955cd0e7443a9812"},
+]
+
+[[package]]
+name = "tomli"
+version = "2.0.1"
+description = "A lil' TOML parser"
+optional = false
+python-versions = ">=3.7"
+files = [
+    {file = "tomli-2.0.1-py3-none-any.whl", hash = "sha256:939de3e7a6161af0c887ef91b7d41a53e7c5a1ca976325f429cb46ea9bc30ecc"},
+    {file = "tomli-2.0.1.tar.gz", hash = "sha256:de526c12914f0c550d15924c62d72abc48d6fe7364aa87328337a31007fe8a4f"},
+]
+
+[[package]]
+name = "tomlkit"
+version = "0.12.4"
+description = "Style preserving TOML library"
+optional = false
+python-versions = ">=3.7"
+files = [
+    {file = "tomlkit-0.12.4-py3-none-any.whl", hash = "sha256:5cd82d48a3dd89dee1f9d64420aa20ae65cfbd00668d6f094d7578a78efbb77b"},
+    {file = "tomlkit-0.12.4.tar.gz", hash = "sha256:7ca1cfc12232806517a8515047ba66a19369e71edf2439d0f5824f91032b6cc3"},
+]
+
+[[package]]
+name = "typing-extensions"
+version = "4.10.0"
+description = "Backported and Experimental Type Hints for Python 3.8+"
+optional = false
+python-versions = ">=3.8"
+files = [
+    {file = "typing_extensions-4.10.0-py3-none-any.whl", hash = "sha256:69b1a937c3a517342112fb4c6df7e72fc39a38e7891a5730ed4985b5214b5475"},
+    {file = "typing_extensions-4.10.0.tar.gz", hash = "sha256:b0abd7c89e8fb96f98db18d86106ff1d90ab692004eb746cf6eda2682f91b3cb"},
+]
+
+[metadata]
+lock-version = "2.0"
+python-versions = "^3.9"
+content-hash = "0b0fc3196eae30be73a25481a4725b0461aa94a5d39653a94365e264e07d65b3"
diff --git a/icij-common/pyproject.toml b/icij-common/pyproject.toml
index a5c2fe04..4dd7c1a4 100644
--- a/icij-common/pyproject.toml
+++ b/icij-common/pyproject.toml
@@ -24,6 +24,7 @@ python = "^3.9"
 pydantic = "^1.10" # Sadly needed for now because of Pyinstaller
 
 [tool.poetry.group.dev.dependencies]
+neo4j = "^5.0.0"
 pylint = "^3.1.0"
 pytest = "^7.2.1"
 pytest-asyncio = "^0.20.3"
diff --git a/icij-worker/.gitignore b/icij-worker/.gitignore
deleted file mode 100644
index 7b2511e4..00000000
--- a/icij-worker/.gitignore
+++ /dev/null
@@ -1 +0,0 @@
-pyproject.toml
\ No newline at end of file
diff --git a/icij-worker/icij_worker/tests/cli/conftest.py b/icij-worker/icij_worker/tests/cli/conftest.py
index d4e42ba1..1c7029e1 100644
--- a/icij-worker/icij_worker/tests/cli/conftest.py
+++ b/icij-worker/icij_worker/tests/cli/conftest.py
@@ -1,7 +1,13 @@
 import pytest
+import typer
 from typer.testing import CliRunner
 
 
 @pytest.fixture(scope="session")
 def cli_runner() -> CliRunner:
+    # disable rich to avoid colors to show up in test string:
+    # https://github.com/tiangolo/typer/pull/647#issuecomment-1868190451
+    # rich and pytest capture don't play well together:
+    # https://github.com/Textualize/rich/issues/317
+    typer.core.rich = None
     return CliRunner(mix_stderr=False)
diff --git a/icij-worker/icij_worker/tests/cli/test_cli.py b/icij-worker/icij_worker/tests/cli/test_cli.py
index 9c1c2430..39c87cc9 100644
--- a/icij-worker/icij_worker/tests/cli/test_cli.py
+++ b/icij-worker/icij_worker/tests/cli/test_cli.py
@@ -9,15 +9,15 @@
 
 @pytest.mark.parametrize("help_command", ["-h", "--help"])
 def test_help(cli_runner: CliRunner, help_command: str):
-    result = cli_runner.invoke(cli_app, [help_command])
+    result = cli_runner.invoke(cli_app, [help_command], color=False)
     assert result.exit_code == 0
     output = result.stdout
-    assert "Usage: icij-worker [OPTIONS] COMMAND [ARGS]... " in output
+    assert "icij-worker [OPTIONS] COMMAND [ARGS]..." in output
     assert "--version" in output
 
 
 def test_version(cli_runner: CliRunner):
-    result = cli_runner.invoke(cli_app, ["--version"])
+    result = cli_runner.invoke(cli_app, ["--version"], color=False)
     assert result.exit_code == 0
     version = result.stdout
     with fail_if_exception(f"CLI app returned an invalid version: {version }"):
diff --git a/icij-worker/icij_worker/tests/cli/test_workers.py b/icij-worker/icij_worker/tests/cli/test_workers.py
index d30cd1d7..d59200aa 100644
--- a/icij-worker/icij_worker/tests/cli/test_workers.py
+++ b/icij-worker/icij_worker/tests/cli/test_workers.py
@@ -11,12 +11,12 @@
 def test_workers_help(cli_runner: CliRunner, help_command: str):
     # When
     result = cli_runner.invoke(
-        cli_app, ["workers", help_command], catch_exceptions=False
+        cli_app, ["workers", help_command], catch_exceptions=False, color=False
     )
     # Then
     assert result.exit_code == 0
     output = result.stdout
-    assert "Usage: icij-worker workers [OPTIONS] COMMAND [ARGS]..." in output
+    assert "icij-worker workers [OPTIONS] COMMAND [ARGS]..." in output
     assert "start  Start a pool of workers running the provided app" in output
 
 
@@ -34,7 +34,7 @@ def test_workers_start(
     # Given
     test_app = "icij_worker.tests.conftest.APP"
     # When
-    result = cli_runner.invoke(cli_app, ["workers", "start", test_app])
+    result = cli_runner.invoke(cli_app, ["workers", "start", test_app], color=False)
     # Then
     # Here the program will fail because the DB for the worker is not initialized,
     # since the CLI is running forever, launching a failing worker enables returning
@@ -46,11 +46,11 @@ def test_workers_start(
 @pytest.mark.parametrize("help_command", ["-h", "--help"])
 def test_workers_start_help(cli_runner: CliRunner, help_command: str):
     # When
-    result = cli_runner.invoke(cli_app, ["workers", "start", help_command])
+    result = cli_runner.invoke(cli_app, ["workers", "start", help_command], color=False)
     # Then
     assert result.exit_code == 0
     output = result.stdout
-    assert " Usage: icij-worker workers start [OPTIONS] APP" in output
+    assert "icij-worker workers start [OPTIONS] APP" in output
     assert "-n" in output
     assert "-n-workers" in output
     assert "-c" in output
diff --git a/icij-worker/poetry.lock b/icij-worker/poetry.lock
new file mode 100644
index 00000000..57c4be8e
--- /dev/null
+++ b/icij-worker/poetry.lock
@@ -0,0 +1,454 @@
+# This file is automatically @generated by Poetry 1.5.1 and should not be changed by hand.
+
+[[package]]
+name = "astroid"
+version = "3.1.0"
+description = "An abstract syntax tree for Python with inference support."
+optional = false
+python-versions = ">=3.8.0"
+files = [
+    {file = "astroid-3.1.0-py3-none-any.whl", hash = "sha256:951798f922990137ac090c53af473db7ab4e70c770e6d7fae0cec59f74411819"},
+    {file = "astroid-3.1.0.tar.gz", hash = "sha256:ac248253bfa4bd924a0de213707e7ebeeb3138abeb48d798784ead1e56d419d4"},
+]
+
+[package.dependencies]
+typing-extensions = {version = ">=4.0.0", markers = "python_version < \"3.11\""}
+
+[[package]]
+name = "click"
+version = "8.1.7"
+description = "Composable command line interface toolkit"
+optional = false
+python-versions = ">=3.7"
+files = [
+    {file = "click-8.1.7-py3-none-any.whl", hash = "sha256:ae74fb96c20a0277a1d615f1e4d73c8414f5a98db8b799a7931d1582f3390c28"},
+    {file = "click-8.1.7.tar.gz", hash = "sha256:ca9853ad459e787e2192211578cc907e7594e294c7ccc834310722b41b9ca6de"},
+]
+
+[package.dependencies]
+colorama = {version = "*", markers = "platform_system == \"Windows\""}
+
+[[package]]
+name = "colorama"
+version = "0.4.6"
+description = "Cross-platform colored terminal text."
+optional = false
+python-versions = "!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*,!=3.4.*,!=3.5.*,!=3.6.*,>=2.7"
+files = [
+    {file = "colorama-0.4.6-py2.py3-none-any.whl", hash = "sha256:4f1d9991f5acc0ca119f9d443620b77f9d6b33703e51011c16baf57afb285fc6"},
+    {file = "colorama-0.4.6.tar.gz", hash = "sha256:08695f5cb7ed6e0531a20572697297273c47b8cae5a63ffc6d6ed5c201be6e44"},
+]
+
+[[package]]
+name = "dill"
+version = "0.3.8"
+description = "serialize all of Python"
+optional = false
+python-versions = ">=3.8"
+files = [
+    {file = "dill-0.3.8-py3-none-any.whl", hash = "sha256:c36ca9ffb54365bdd2f8eb3eff7d2a21237f8452b57ace88b1ac615b7e815bd7"},
+    {file = "dill-0.3.8.tar.gz", hash = "sha256:3ebe3c479ad625c4553aca177444d89b486b1d84982eeacded644afc0cf797ca"},
+]
+
+[package.extras]
+graph = ["objgraph (>=1.7.2)"]
+profile = ["gprof2dot (>=2022.7.29)"]
+
+[[package]]
+name = "exceptiongroup"
+version = "1.2.0"
+description = "Backport of PEP 654 (exception groups)"
+optional = false
+python-versions = ">=3.7"
+files = [
+    {file = "exceptiongroup-1.2.0-py3-none-any.whl", hash = "sha256:4bfd3996ac73b41e9b9628b04e079f193850720ea5945fc96a08633c66912f14"},
+    {file = "exceptiongroup-1.2.0.tar.gz", hash = "sha256:91f5c769735f051a4290d52edd0858999b57e5876e9f85937691bd4c9fa3ed68"},
+]
+
+[package.extras]
+test = ["pytest (>=6)"]
+
+[[package]]
+name = "icij-common"
+version = "0.1.0"
+description = "Common utils for ICIJ libs"
+optional = false
+python-versions = "^3.9"
+files = []
+develop = true
+
+[package.dependencies]
+pydantic = "^1.10"
+
+[package.source]
+type = "directory"
+url = "../icij-common"
+
+[[package]]
+name = "iniconfig"
+version = "2.0.0"
+description = "brain-dead simple config-ini parsing"
+optional = false
+python-versions = ">=3.7"
+files = [
+    {file = "iniconfig-2.0.0-py3-none-any.whl", hash = "sha256:b6a85871a79d2e3b22d2d1b94ac2824226a63c6b741c88f7ae975f18b6778374"},
+    {file = "iniconfig-2.0.0.tar.gz", hash = "sha256:2d91e135bf72d31a410b17c16da610a82cb55f6b0477d1a902134b24a455b8b3"},
+]
+
+[[package]]
+name = "isort"
+version = "5.13.2"
+description = "A Python utility / library to sort Python imports."
+optional = false
+python-versions = ">=3.8.0"
+files = [
+    {file = "isort-5.13.2-py3-none-any.whl", hash = "sha256:8ca5e72a8d85860d5a3fa69b8745237f2939afe12dbf656afbcb47fe72d947a6"},
+    {file = "isort-5.13.2.tar.gz", hash = "sha256:48fdfcb9face5d58a4f6dde2e72a1fb8dcaf8ab26f95ab49fab84c2ddefb0109"},
+]
+
+[package.extras]
+colors = ["colorama (>=0.4.6)"]
+
+[[package]]
+name = "markdown-it-py"
+version = "3.0.0"
+description = "Python port of markdown-it. Markdown parsing, done right!"
+optional = false
+python-versions = ">=3.8"
+files = [
+    {file = "markdown-it-py-3.0.0.tar.gz", hash = "sha256:e3f60a94fa066dc52ec76661e37c851cb232d92f9886b15cb560aaada2df8feb"},
+    {file = "markdown_it_py-3.0.0-py3-none-any.whl", hash = "sha256:355216845c60bd96232cd8d8c40e8f9765cc86f46880e43a8fd22dc1a1a8cab1"},
+]
+
+[package.dependencies]
+mdurl = ">=0.1,<1.0"
+
+[package.extras]
+benchmarking = ["psutil", "pytest", "pytest-benchmark"]
+code-style = ["pre-commit (>=3.0,<4.0)"]
+compare = ["commonmark (>=0.9,<1.0)", "markdown (>=3.4,<4.0)", "mistletoe (>=1.0,<2.0)", "mistune (>=2.0,<3.0)", "panflute (>=2.3,<3.0)"]
+linkify = ["linkify-it-py (>=1,<3)"]
+plugins = ["mdit-py-plugins"]
+profiling = ["gprof2dot"]
+rtd = ["jupyter_sphinx", "mdit-py-plugins", "myst-parser", "pyyaml", "sphinx", "sphinx-copybutton", "sphinx-design", "sphinx_book_theme"]
+testing = ["coverage", "pytest", "pytest-cov", "pytest-regressions"]
+
+[[package]]
+name = "mccabe"
+version = "0.7.0"
+description = "McCabe checker, plugin for flake8"
+optional = false
+python-versions = ">=3.6"
+files = [
+    {file = "mccabe-0.7.0-py2.py3-none-any.whl", hash = "sha256:6c2d30ab6be0e4a46919781807b4f0d834ebdd6c6e3dca0bda5a15f863427b6e"},
+    {file = "mccabe-0.7.0.tar.gz", hash = "sha256:348e0240c33b60bbdf4e523192ef919f28cb2c3d7d5c7794f74009290f236325"},
+]
+
+[[package]]
+name = "mdurl"
+version = "0.1.2"
+description = "Markdown URL utilities"
+optional = false
+python-versions = ">=3.7"
+files = [
+    {file = "mdurl-0.1.2-py3-none-any.whl", hash = "sha256:84008a41e51615a49fc9966191ff91509e3c40b939176e643fd50a5c2196b8f8"},
+    {file = "mdurl-0.1.2.tar.gz", hash = "sha256:bb413d29f5eea38f31dd4754dd7377d4465116fb207585f97bf925588687c1ba"},
+]
+
+[[package]]
+name = "neo4j"
+version = "5.18.0"
+description = "Neo4j Bolt driver for Python"
+optional = false
+python-versions = ">=3.7"
+files = [
+    {file = "neo4j-5.18.0.tar.gz", hash = "sha256:4014406ae5b8b485a8ba46c9f00b6f5b4aaf88e7c3a50603445030c2aab701c9"},
+]
+
+[package.dependencies]
+pytz = "*"
+
+[package.extras]
+numpy = ["numpy (>=1.7.0,<2.0.0)"]
+pandas = ["numpy (>=1.7.0,<2.0.0)", "pandas (>=1.1.0,<3.0.0)"]
+pyarrow = ["pyarrow (>=1.0.0)"]
+
+[[package]]
+name = "packaging"
+version = "24.0"
+description = "Core utilities for Python packages"
+optional = false
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diff --git a/icij-worker/pyproject.toml b/icij-worker/pyproject.toml
index d36bad23..b38cbeef 100644
--- a/icij-worker/pyproject.toml
+++ b/icij-worker/pyproject.toml
@@ -28,6 +28,7 @@ icij_common = { path = "../icij-common", develop = true }
 typer = { extras = ["all"], version = "^0.9.0" }
 
 [tool.poetry.group.dev.dependencies]
+neo4j = "^5.0.0"
 pylint = "^3.1.0"
 pytest = "^7.2.1"
 pytest-asyncio = "^0.20.3"