diff --git a/.github/workflows/python-linter.yml b/.github/workflows/python-linter.yml
index 9e99651f..24b524cd 100644
--- a/.github/workflows/python-linter.yml
+++ b/.github/workflows/python-linter.yml
@@ -1,6 +1,3 @@
-# This workflow will install Python dependencies, run tests and lint with a variety of Python versions
-# For more information see: https://help.github.com/actions/language-and-framework-guides/using-python-with-github-actions
-
 name: "🔎 Python Linter"
 
 on:
@@ -10,26 +7,22 @@ on:
     branches: ["main"]
 
 jobs:
-  build:
+  lint:
     runs-on: ubuntu-latest
-    strategy:
-      fail-fast: false
 
     steps:
       - name: "⏳ Checkout repository"
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: "🐍 Set up Python"
-        uses: actions/setup-python@v4
+        uses: actions/setup-python@v5
         with:
           cache: "pip"
+          cache-dependency-path: pyproject.toml
           python-version: "3.10"
 
       - name: "🛠 Install dependencies"
-        run: |
-          pip install -r .github/workflows/requirements.txt
-          ruff --version
-          pytest --version
+        run: python3 -m pip install -e ".[dev]"
 
       - name: "😾 Lint with ruff"
-        run: ruff check
+        run: make lint
diff --git a/.github/workflows/requirements.txt b/.github/workflows/requirements.txt
deleted file mode 100644
index 2eac7076..00000000
--- a/.github/workflows/requirements.txt
+++ /dev/null
@@ -1,6 +0,0 @@
-
-
-
-ruff==0.11.6
-pytest==7.4.0
-pyyaml==6.0.2
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 7fedf718..b0d3613a 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -9,25 +9,23 @@ on:
 jobs:
   mock-tests:
     runs-on: ubuntu-latest
-    strategy:
-      fail-fast: false
 
     steps:
       - name: "⏳ Checkout repository"
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: "🐍 Set up Python"
-        uses: actions/setup-python@v4
+        uses: actions/setup-python@v5
         with:
           cache: "pip"
+          cache-dependency-path: pyproject.toml
           python-version: "3.10"
 
       - name: "🛠 Install dependencies"
-        run: |
-          pip install -r .github/workflows/requirements.txt
+        run: python3 -m pip install -e ".[dev,test]"
 
       - name: "🧪 Run mock tests"
-        run: python -m pytest tests/ -v -k mock
+        run: make test-mock
 
       - name: "📋 Validate examples"
-        run: python -m pytest tests/test_examples.py -v
+        run: make test-examples
diff --git a/pyproject.toml b/pyproject.toml
index 7f3f1443..73efd5c6 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,3 +1,7 @@
+[build-system]
+requires = ["setuptools>=64"]
+build-backend = "setuptools.build_meta"
+
 [project]
 name = "micropython-steami-lib"
 version = "0.1.0"
@@ -6,8 +10,12 @@ license = {text = "GPL-3.0-or-later"}
 requires-python = ">=3.7"
 
 [project.optional-dependencies]
-dev = ["ruff>=0.9"]
-test = ["pytest>=7.0", "pyyaml>=6.0", "mpremote>=1.0"]
+dev = ["ruff==0.11.6"]
+test = ["pytest==7.4.0", "pyyaml==6.0.2", "mpremote>=1.0"]
+
+[tool.setuptools]
+# No Python packages to install — this project contains MicroPython drivers
+packages = []
 
 [project.urls]
 Homepage = "https://www.steami.cc/"
diff --git a/tests/requirements-test.txt b/tests/requirements-test.txt
deleted file mode 100644
index 9b2ac3c3..00000000
--- a/tests/requirements-test.txt
+++ /dev/null
@@ -1,3 +0,0 @@
-pytest>=7.0
-pyyaml>=6.0
-mpremote>=1.0