Put the build system back

Author: robolyst

.github/workflows/ci.yml

@@ -24,9 +24,6 @@ jobs:
       - name: Set up Python ${{ matrix.python-version }}
         run: uv python install ${{ matrix.python-version }}
 
-      - name: Sync environment
-        run: uv sync --dev
-
       - name: Build
         run: uv build
 

pyproject.toml

@@ -39,6 +39,10 @@ dev = [
     "twine>=6.1.0",
 ]
 
+[build-system]
+requires = ["uv_build>=0.8.8,<0.9.0"]
+build-backend = "uv_build"
+
 # =============================================================================
 # Code linting
 # =============================================================================