diff --git a/.github/workflows/continuous_development.yml b/.github/workflows/continuous_development.yml
new file mode 100644
index 0000000..edca2b7
--- /dev/null
+++ b/.github/workflows/continuous_development.yml
@@ -0,0 +1,54 @@
+name: Publish release to PyPi
+
+on:
+  pull_request:
+    types:
+      - closed
+    branches:
+      - master
+
+jobs:
+  build:
+    name: build
+    if: github.event.pull_request.merged == true
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout the source ode
+        uses: actions/checkout@v3 
+
+      - name: Setup the Python environment
+        uses: actions/setup-python@v5
+        with:
+            python-version: "3.11"
+
+      - name: Build the universal wheel
+        run: |
+          python -m pip install hatchling
+          python -m hatchling build
+      
+      - uses: actions/upload-artifact@v4
+        with:
+          name: wheel
+          path: dist/
+  
+  publish:
+    name: publish
+    needs: build
+    runs-on: ubuntu-latest
+    permissions:
+      id-token: write  # IMPORTANT: mandatory for trusted publishing
+    environment:
+      name: pypi
+      url: https://pypi.org/p/appabuild
+    steps:
+      - uses: actions/download-artifact@v4
+        with:
+          name: wheel
+          path: dist/
+
+      - name: Publish distribution package to PyPI
+        uses: pypa/gh-action-pypi-publish@release/v1
+        with:
+          verbose: true
+          packages-dir: dist
+          password: ${{ secrets.PYPI_TOKEN }}
diff --git a/app/cli/__main__.py b/app/cli/__main__.py
deleted file mode 100644
index c5054f7..0000000
--- a/app/cli/__main__.py
+++ /dev/null
@@ -1,11 +0,0 @@
-from .database import app as database_app
-from .lca import app as lca_app
-import typer
-
-app = typer.Typer()
-app.add_typer(database_app, name="database")
-app.add_typer(lca_app, name="lca")
-
-
-if __name__ == "__main__":
-    typer.run(app)
diff --git a/app/cli/main.py b/app/cli/main.py
new file mode 100644
index 0000000..a4b15b8
--- /dev/null
+++ b/app/cli/main.py
@@ -0,0 +1,12 @@
+from app.cli.database import app as database_app
+from app.cli.lca import app as lca_app
+import typer
+
+
+cli_app = typer.Typer()
+cli_app.add_typer(database_app, name="database")
+cli_app.add_typer(lca_app, name="lca")
+
+
+if __name__ == "__main__":
+    cli_app()
diff --git a/pyproject.toml b/pyproject.toml
new file mode 100644
index 0000000..61c54f8
--- /dev/null
+++ b/pyproject.toml
@@ -0,0 +1,58 @@
+[build-system]
+requires = ["hatchling"]
+build-backend = "hatchling.build"
+
+[tool.hatch.build.targets.wheel]
+packages = ["app", "appabuild"]
+
+[project]
+name = "appabuild"
+version = "0.3.0"
+authors = [{ name = "Maxime Peralta", email = "maxime.peralta@cea.fr"}]
+maintainers= [{name = "Maxime Peralta", email = "maxime.peralta@cea.fr"}]
+description = "Appa Build is a package to build impact models"
+keywords = ["ecodesign", "life cycle assessment"]
+license = { file = "LICENSE.md" }
+readme = "README.md"
+classifiers = [
+    "License :: OSI Approved :: Eclipse Public License 2.0 (EPL-2.0)",
+    "Programming Language :: Python",
+    "Programming Language :: Python :: 3",
+    "Intended Audience :: Developers",
+    "Intended Audience :: Manufacturing",
+    "Intended Audience :: Science/Research",
+    "Topic :: Scientific/Engineering",
+]
+requires-python = ">=3.11,<3.12"
+dependencies = [
+    "numpy==1.26.4",
+    "pandas==2.0.0",
+    "brightway2==2.4.7",
+    "bw2io==0.8.12",
+    "lca_algebraic==1.0.0",
+    "fastapi",
+    "uvicorn[standard]",
+    "flake8",
+    "black",
+    "isort",
+    "typer",
+    "omegaconf",
+    "pydantic",
+    "scipy",
+    "matplotlib==3.10.0",
+    "seaborn==0.12.2",
+    "plotly",
+    "aenum",
+    "kaleido",
+    "tqdm",
+    "ruamel.yaml",
+    "apparun==0.3.1",
+    "pre-commit",
+    "typer==0.15.1",
+]
+
+[project.scripts]
+appabuild = "app.cli.main:cli_app"
+
+[project.urls]
+"Source" = "https://github.com/appalca/appabuild/"
\ No newline at end of file
diff --git a/requirements.txt b/requirements.txt
index 0d4c463..59b3ff1 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -8,7 +8,7 @@ uvicorn[standard]
 flake8
 black
 isort
-typer
+typer==0.15.1
 omegaconf
 pydantic
 scipy
@@ -22,3 +22,4 @@ tqdm
 ruamel.yaml
 apparun==0.3.0
 pre-commit
+hatchling
diff --git a/setup.py b/setup.py
deleted file mode 100644
index 1cff867..0000000
--- a/setup.py
+++ /dev/null
@@ -1,15 +0,0 @@
-from setuptools import find_packages, setup
-
-setup(
-    name="appabuild",
-    version="0.3.0",
-    author="Maxime Peralta",
-    author_email="maxime.peralta@cea.fr",
-    description="Appa Build is a package to build impact models",
-    packages=find_packages(),
-    entry_points={
-        "console_scripts": [
-            "appabuild=app.cli.__main__:app",
-        ],
-    },
-)
\ No newline at end of file