diff --git a/.github/workflows/workflow.yml b/.github/workflows/workflow.yml
new file mode 100644
index 0000000..350b3e7
--- /dev/null
+++ b/.github/workflows/workflow.yml
@@ -0,0 +1,93 @@
+name: Publish Python 🐍 distribution 📦 to PyPI
+
+on: 
+  push:
+    branches:
+      - release
+
+jobs:
+  build:
+    name: Build distribution 📦
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v4
+    - name: Set up Python
+      uses: actions/setup-python@v5
+      with:
+        python-version: "3.11.9"
+    - name: Install Poetry
+      run: |
+        python3 -m pip install poetry --user
+    - name: Install dependencies and build the project
+      run: |
+        poetry install --no-dev
+        poetry build
+    - name: Store the distribution packages
+      uses: actions/upload-artifact@v4
+      with:
+        name: python-package-distributions
+        path: dist/
+
+  publish-to-pypi:
+    name: Publish Python 🐍 distribution 📦 to PyPI
+    needs:
+    - build
+    runs-on: ubuntu-latest
+    environment:
+      name: pypi
+      url: https://pypi.org/p/codegreen-core  
+    permissions:
+      id-token: write  # IMPORTANT: mandatory for trusted publishing
+
+    steps:
+    - name: Download all the dists
+      uses: actions/download-artifact@v4
+      with:
+        name: python-package-distributions
+        path: dist/
+    - name: Publish distribution 📦 to PyPI
+      uses: pypa/gh-action-pypi-publish@release/v1
+
+  github-release:
+    name: >-
+      Sign the Python 🐍 distribution 📦 with Sigstore
+      and upload them to GitHub Release
+    needs:
+    - publish-to-pypi
+    runs-on: ubuntu-latest
+
+    permissions:
+      contents: write  # IMPORTANT: mandatory for making GitHub Releases
+      id-token: write  # IMPORTANT: mandatory for sigstore
+
+    steps:
+    - name: Download all the dists
+      uses: actions/download-artifact@v4
+      with:
+        name: python-package-distributions
+        path: dist/
+    - name: Sign the dists with Sigstore
+      uses: sigstore/gh-action-sigstore-python@v3.0.0
+      with:
+        inputs: >-
+          ./dist/*.tar.gz
+          ./dist/*.whl
+    - name: Create GitHub Release
+      env:
+        GITHUB_TOKEN: ${{ github.token }}
+      run: >-
+        gh release create
+        '${{ github.ref_name }}'
+        --repo '${{ github.repository }}'
+        --notes ""
+    - name: Upload artifact signatures to GitHub Release
+      env:
+        GITHUB_TOKEN: ${{ github.token }}
+      # Upload to GitHub Release using the `gh` CLI.
+      # `dist/` contains the built packages, and the
+      # sigstore-produced signatures and certificates.
+      run: >-
+        gh release upload
+        '${{ github.ref_name }}' dist/**
+        --repo '${{ github.repository }}'
\ No newline at end of file
diff --git a/.gitignore b/.gitignore
index 671e9cd..c864c2a 100644
--- a/.gitignore
+++ b/.gitignore
@@ -173,4 +173,7 @@ tests/data1
 codegreen_core/models/files
 Dockerfile
 .vscode
-poetry.lock
\ No newline at end of file
+poetry.lock
+
+codegreen_core/tools/test.py
+codegreen_core/data/test.py
diff --git a/codegreen_core/tools/carbon_emission.py b/codegreen_core/tools/carbon_emission.py
index 859fd91..875328e 100644
--- a/codegreen_core/tools/carbon_emission.py
+++ b/codegreen_core/tools/carbon_emission.py
@@ -169,14 +169,9 @@ def compute_ce_from_energy(server, ci_data: pd.DataFrame):
     """
     date_format = "%Y%m%d%H%M"  # Year, Month, Day, Hour, Minute
 
-    server_defaults = {
-        "power_draw_core": 15.8,
-        "usage_factor_core": 1,
-        "power_draw_mem": 0.3725,
-        "power_usage_efficiency": 1.6,
-    }
-    server = server_defaults | server  # set defaults if not provided
 
+    server =  _add_server_defaults(server)  # set defaults if not provided
+    # print(server)
     # to make sure startTimeUTC is in date format
     if not pd.api.types.is_datetime64_any_dtype(ci_data["startTimeUTC"]):
         ci_data["startTimeUTC"] = pd.to_datetime(ci_data["startTimeUTC"])
@@ -208,7 +203,7 @@ def compute_ce_from_energy(server, ci_data: pd.DataFrame):
 
 def _compute_ce_bulk(server, jobs):
     for job in jobs:
-        job.end_time = job["start_time"] + timedelta(minutes=job["runtime_minutes"])
+        job['end_time'] = job["start_time"] + timedelta(minutes=job["runtime_minutes"])
 
     min_start_date = min(job["start_time"] for job in jobs)
     max_end_date = max(job["end_time"] for job in jobs)
@@ -222,19 +217,23 @@ def _compute_ce_bulk(server, jobs):
             & (energy_data["startTimeUTC"] <= job["end_time"])
         ]
         job["emissions"], temp = compute_ce_from_energy(
-            filtered_energy,
-            server["number_core"],
-            server["memory_gb"],
-            server["power_draw_core"],
-            server["usage_factor_core"],
-            server["power_draw_mem"],
-            server["power_usage_efficiency"],
+            server,
+            filtered_energy
         )
     return energy_data, jobs, min_start_date, max_end_date
 
+def _add_server_defaults(server):
+    server_defaults = {
+        "power_draw_core": 15.8,
+        "usage_factor_core": 1,
+        "power_draw_mem": 0.3725,
+        "power_usage_efficiency": 1.6,
+    }
+    server = server_defaults | server  # set defaults if not provided
+    return server    
 
 def plot_ce_jobs(server, jobs):
-    energy_data, jobs, min_start_date, max_end_date = _compute_ce_bulk(server, jobs)
+    energy_data, jobs, min_start_date, max_end_date = _compute_ce_bulk(_add_server_defaults(server), jobs)
     Color = {
         "red": "#D6A99A",
         "green": "#99D19C",
@@ -294,4 +293,5 @@ def plot_ce_jobs(server, jobs):
     # Add legend and show the plot
     fig.tight_layout()
     # plt.legend(loc='lower right')
-    plt.show()
+    plt.show(block=True)
+    # plt.pyplot.show()
diff --git a/pyproject.toml b/pyproject.toml
index 5f435da..be6f930 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "codegreen_core"
-version = "0.5.0"
+version = "0.0.2"
 description = "This package helps you become aware of the carbon footprint of your computation"
 authors = ["Anne Hartebrodt <anne.hartebrodt@fau.de>","Shubh Vardhan Jain <shubh.v.jain@fau.de>"]
 readme = "README.md"