diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 1902bdd..d74d7bb 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -4,6 +4,16 @@ on:
   push:
     branches:
       - main
+  workflow_call:
+    inputs:
+      attest-package:
+        description: "Create GitHub provenance attestation for the package."
+        default: "false"
+        type: string
+    outputs:
+      artifact-name:
+        description: "Name of the uploaded artifact; use for artifact retrieval."
+        value: ${{ jobs.package.outputs.artifact-name }}
 
 # Cancel active CI runs for a PR before starting another run
 concurrency:
@@ -27,10 +37,15 @@ jobs:
       tox-source: "tox"
 
   package:
-    name: Python Package
-    uses: beeware/.github/.github/workflows/python-package-create.yml@main
+    name: Package gbulb
+    permissions:
+      id-token: write
+      contents: read
+      attestations: write
+#    uses: beeware/.github/.github/workflows/python-package-create.yml@main
+    uses: rmartin16/.github-beeware/.github/workflows/python-package-create.yml@hynek-build
     with:
-      tox-source: "tox"
+      attest: ${{ inputs.attest-package }}
 
   python-versions:
     name: Python compatibility test
@@ -47,22 +62,30 @@ jobs:
     steps:
     - name: Checkout
       uses: actions/checkout@v4.1.6
+      with:
+        fetch-depth: 0
 
     - name: Set up Python ${{ matrix.python-version }}
       uses: actions/setup-python@v5.1.0
       with:
         python-version: ${{ matrix.python-version }}
 
-    - name: Install system dependencies
+    - name: Get Packages
+      uses: actions/download-artifact@v4.1.7
+      with:
+        name: ${{ needs.package.outputs.artifact-name }}
+        path: dist
+
+    - name: Install System Dependencies
       run: |
         sudo apt update -y
         sudo apt install -y pkg-config python3-dev libgirepository1.0-dev gir1.2-gtk-3.0
 
     - name: Install Tox
-      run: |
-        # We don't actually want to install gbulb; we just want the dev extras
-        # so that we have a known version of coverage
-        python -m pip install -e .[dev]
+      uses: beeware/.github/.github/actions/install-requirement@main
+      with:
+        requirements: tox
+        extra: dev
 
     - name: Test
-      run: tox -e py
+      run: tox -e py --installpkg dist/gbulb-*.whl
diff --git a/changes/148.misc.rst b/changes/148.misc.rst
new file mode 100644
index 0000000..3f31ce7
--- /dev/null
+++ b/changes/148.misc.rst
@@ -0,0 +1 @@
+``hynek/build-and-inspect-python-package`` is now used to create the Python package.
diff --git a/tox.ini b/tox.ini
index 34363ee..e6490db 100644
--- a/tox.ini
+++ b/tox.ini
@@ -33,13 +33,3 @@ deps =
 commands =
     check  : python -m towncrier.check --compare-with origin/main
     !check : python -m towncrier {posargs}
-
-[testenv:package]
-skip_install = True
-passenv = FORCE_COLOR
-deps =
-    build==1.2.1
-    twine==5.1.0
-commands =
-    python -m build . --outdir dist/
-    python -m twine check dist/*