diff --git a/.github/workflows/lint_and_test.yml b/.github/workflows/lint_and_test.yml
index f29d561..f668f75 100644
--- a/.github/workflows/lint_and_test.yml
+++ b/.github/workflows/lint_and_test.yml
@@ -1,11 +1,19 @@
 name: Test (lint and typehints)
 
 on:
-  push:
-    branches:
-      - main
-  pull_request:
-    types: [opened, synchronize, reopened]
+  workflow_call:
+    inputs:
+      python-version:
+        required: false
+        type: string
+        default: '3.12'   # Default Python version
+      requirements_path:
+        required: false
+        type: string
+    secrets:
+      repo_token:
+        required: true
+
 
 jobs:
   lint_and_typehints:
@@ -15,46 +23,34 @@ jobs:
     - name: Checkout code
       uses: actions/checkout@v4
 
-    # - name: Exit if not Pyceaas repository
-    #   run: |
-    #     if [ "${{ github.repository }}" != "PyCeas/Pyceas" ]; then
-    #       echo "Not running in PyCeas repository. Exiting."
-    #       exit 0
-    #     fi
-
     - name: Set up Python
       uses: actions/setup-python@v5
       with:
         python-version: '3.12'
 
-    - name: Install dependencies
+    - name: Install dependencies (if requirements.txt exists)
       run: |
-        python -m pip install --upgrade pip
-        pip install ruff mypy pygame-ce pytmx
+        if [ - f requirements.txt ]; then
+          echo "requirements.txt found. Installing dependencies."
+          python -m pip install --upgrade pip
+          pip install -r requirements.txt
+        else
+          echo "No requirements.txt found. Installing ruff and mypy."
+          python -m pip install --upgrade pip
+          pip install ruff mypy
+        fi
       
     - name: Check for Python files
-      id: check_files
-      run: |
-        git ls-files '*.py' > files.txt
-        if [ ! -s files.txt ]; then
-          echo "No Python files found. Skipping lint and type-check."
-        fi
-
+    run: |
+      if ! git ls-files '*.py' | grep -q '.'; then
+        echo "No Python files found. Exiting."
+        exit 0
+      fi
     - name: Run ruff
-      if: success()
-      run: |
-        if [ -s files.txt ]; then
-          ruff check $(cat files.txt)
-        else
-          echo "Skipping ruff; no Python files found."
-        fi
+      run: ruff check .
 
     - name: Run mypy
-      if: success()
-      run: |
-        if [ -s files.txt ]; then
-          mypy $(cat files.txt)
-        else
-          echo "Skipping mypy; no Python files found."
-        fi
+      run: mypy .
+
+