Get rid of noxfile & setup try using helper script instead

.github/workflows/build_package.yml

@@ -24,24 +24,19 @@ jobs:
         with:
           python-version: "3.10"
 
-      - name: Install pipx
-        run: python -m pip install --user pipx
-
-      - name: Install build using pipx
-        run: pipx install build
-
-      - name: Set BUILD_RAGNA_BASE environment variable
+      - name: Install build dependencies
         run: |
-          if [ "${{ matrix.package }}" == "ragna-base" ]; then
-            echo "BUILD_RAGNA_BASE=1" >> $GITHUB_ENV
-          else
-            echo "BUILD_RAGNA_BASE=" >> $GITHUB_ENV
-          fi
+          python -m pip install --upgrade pip
+          python -m pip install build toml
+
+      - name: Modify pyproject.toml
+        run: python scripts/build_helper.py ${{ matrix.package }}
 
       - name: Build distribution
         run: |
           echo "Building package: ${{ matrix.package }}"
-          pipx run build
+          python -m build
+          echo "Build complete for ${{ matrix.package }}"
 
       - name: Verify package
         run: |

scripts/build_helper.py

@@ -0,0 +1,30 @@
+import toml
+
+
+def modify_pyproject(package_name):
+    with open("pyproject.toml", "r") as f:
+        pyproject_data = toml.load(f)
+
+    pyproject_data["project"]["name"] = package_name
+
+    if package_name == "ragna-base":
+        pyproject_data["tool"]["setuptools"]["dynamic"]["dependencies"] = {
+            "file": ["requirements-base.txt"]
+        }
+    else:
+        pyproject_data["tool"]["setuptools"]["dynamic"]["dependencies"] = {
+            "file": ["requirements.txt"]
+        }
+
+    with open("pyproject.toml", "w") as f:
+        toml.dump(pyproject_data, f)
+
+
+if __name__ == "__main__":
+    import sys
+
+    package_name = sys.argv[1]
+    if package_name not in ["ragna", "ragna-base"]:
+        print("Invalid package name. Must be 'ragna' or 'ragna-base'.")
+        sys.exit(1)
+    modify_pyproject(package_name)