diff --git a/Dockerfile b/Dockerfile
index c76adfd..5ac7c9e 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -14,6 +14,8 @@ ENV OLLAMA_BASE_URL=http://localhost:11434 \
 RUN apk add --no-cache --update \
     python3 \
     py3-pip \
+    gcc \
+    python3-dev \
     make \
     bash \
     && rm -rf ~/.cache/* /usr/local/share/man /tmp/*
diff --git a/Makefile b/Makefile
index d9f60d3..3cbb709 100644
--- a/Makefile
+++ b/Makefile
@@ -27,7 +27,7 @@ install: $(INSTALL_STAMP)
 
 $(INSTALL_STAMP): pyproject.toml
 	@if [ -z $(POETRY) ]; then echo "Poetry could not be found. Please install it."; exit 2; fi
-	$(POETRY) install
+	$(POETRY) install --only main
 	touch $(INSTALL_STAMP)
 
 # Clean target to remove temporary files and caches
diff --git a/README.md b/README.md
index 76ea5e0..987d09e 100644
--- a/README.md
+++ b/README.md
@@ -1,17 +1,20 @@
 # yo-yo-maskᴙ
 A reversible anonymisation service for us all
 
-# Setup development environment
+## Build status
+[![Docker](https://github.com/baloise/yo-yo-maskr/actions/workflows/docker-publish.yml/badge.svg?branch=release)](https://github.com/baloise/yo-yo-maskr/actions/workflows/docker-publish.yml)
+
+## Setup development environment
 
 ```
 ./setup.sh
 ```
-# Run
+## Run
 
 ```
 make run
 ```
-# Trouble shooting
+## Trouble shooting
 
 ```
 echo -n 'db' | gnome-keyring-daemon --unlock
diff --git a/pyproject.toml b/pyproject.toml
index 55d2047..acde198 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -23,13 +23,13 @@ mypy = "^1"
 setuptools = "^0"
 gunicorn = "^0"
 python-dateutil = "^2.9.0.post0"
-ipykernel = "^6.29.5"
 tqdm = "^4.66.6"
-jupyter = "^1.1.1"
 
 [tool.poetry.dev-dependencies]
 pytest = "^6.0"
 ruff = "^0.7"
+ipykernel = "^6.29.5"
+jupyter = "^1.1.1"
 
 [tool.pytest.ini_options]
 minversion = "6.0"