diff --git a/.github/workflows/black.yml b/.github/workflows/black.yml
new file mode 100644
index 0000000..6f27509
--- /dev/null
+++ b/.github/workflows/black.yml
@@ -0,0 +1,17 @@
+name: Black
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+
+jobs:
+  black:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: psf/black@stable
+        with:
+          options: "--check --verbose --diff"
+          src: "./optimize"
diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
new file mode 100644
index 0000000..3830800
--- /dev/null
+++ b/.github/workflows/publish.yml
@@ -0,0 +1,34 @@
+name: Publish to PyPI
+
+permissions:
+  id-token: write
+  contents: read
+
+on:
+  release:
+    types: [published]
+
+jobs:
+  publish:
+    name: Build and publish to PyPI
+    if: startsWith(github.ref, 'refs/tags')
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Set up Python
+        uses: actions/setup-python@v5
+      - name: Install pypa/build
+        run: >-
+          python -m
+          pip install
+          build
+          --user
+      - name: Build a binary wheel and a source tarball
+        run: >-
+          python -m
+          build
+          --sdist
+          --wheel
+          --outdir dist/
+      - name: Publish to PyPI
+        uses: pypa/gh-action-pypi-publish@release/v1
diff --git a/.github/workflows/ruff.yml b/.github/workflows/ruff.yml
new file mode 100644
index 0000000..50345c1
--- /dev/null
+++ b/.github/workflows/ruff.yml
@@ -0,0 +1,14 @@
+name: Ruff
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+
+jobs:
+  ruff:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: chartboost/ruff-action@v1
diff --git a/optimize/__init__.py b/optimize/__init__.py
new file mode 100644
index 0000000..b36e432
--- /dev/null
+++ b/optimize/__init__.py
@@ -0,0 +1,3 @@
+"""
+Numba-accelerated minimization of objective functions.
+"""