diff --git a/.github/workflows/build-opendp.yml b/.github/workflows/build-opendp.yml
new file mode 100644
index 000000000000..2a9a2eee9028
--- /dev/null
+++ b/.github/workflows/build-opendp.yml
@@ -0,0 +1,163 @@
+# SPDX-FileCopyrightText: 2026 The RISE Project
+# SPDX-License-Identifier: MIT
+---
+# Based on upstream's own release pipeline:
+#   https://github.com/opendp/opendp/blob/v0.16.0/.github/workflows/.build.yml
+# opendp is a Rust library exposed to Python as a plain cdylib (setuptools-rust,
+# binding=NoBinding - no CPython linkage at all), so its own CI generates the
+# Python glue code once (the "bindings" feature, architecture-independent) and
+# then compiles the cdylib per platform. Upstream splits those two steps across
+# separate runners only to share the glue code across its many OS/arch jobs;
+# here they run as the two jobs below, narrowed to riscv64.
+name: Build opendp wheels (riscv64)
+
+on:
+  workflow_dispatch:
+    inputs:
+      version:
+        description: 'Version glob to (re)build; empty builds every version of docs/packages/opendp.yaml not released yet'
+        required: false
+        default: ''
+  pull_request:
+    branches: [main]
+    paths:
+      - '.github/workflows/build-opendp.yml'
+      - 'docs/packages/opendp.yaml'
+  push:
+    branches: [main]
+    paths:
+      - '.github/workflows/build-opendp.yml'
+      - 'docs/packages/opendp.yaml'
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
+  cancel-in-progress: true
+
+permissions:
+  contents: read  # to fetch code (actions/checkout)
+
+env:
+  MANYLINUX_RISCV64_IMAGE: quay.io/pypa/manylinux_2_39_riscv64
+  # Hardcoded in opendp's own setup.py RustExtension(features=[...]); the
+  # bindings-generation step below must use the same set so the generated
+  # Python glue matches what the compiled cdylib actually exports.
+  FEATURES: untrusted,polars-ffi
+
+jobs:
+  setup:
+    uses: $/.github/workflows/_setup.yml
+    with:
+      package: opendp
+      version: ${{ inputs.version }}
+
+  build_sdist:
+    needs: [setup]
+    if: needs.setup.outputs.versions != '[]'
+    strategy:
+      fail-fast: false
+      matrix:
+        version: ${{ fromJSON(needs.setup.outputs.versions) }}
+    name: Build opendp ${{ matrix.version }} sdist
+    runs-on: ubuntu-latest
+    env:
+      OPENDP_VERSION: ${{ matrix.version }}
+
+    steps:
+      - name: Checkout opendp v${{ env.OPENDP_VERSION }}
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1  # v7.0.1
+        with:
+          repository: opendp/opendp
+          ref: v${{ env.OPENDP_VERSION }}
+          persist-credentials: false
+
+      - name: Install Rust
+        run: curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- --profile minimal -y
+
+      - name: Generate Python bindings
+        run: |
+          set -euo pipefail
+          source "$HOME/.cargo/env"
+          bash tools/rust_build.sh -r -n -f "${FEATURES},bindings"
+
+      - name: Stage Python source distribution
+        run: bash tools/python_stage.sh -s
+
+      - name: Build sdist
+        run: |
+          set -euo pipefail
+          python3 -m pip install --user build
+          python3 -m build python/. --sdist --outdir dist
+
+      - name: Upload sdist artifact
+        uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a  # v7.0.1
+        with:
+          name: opendp-${{ env.OPENDP_VERSION }}-sdist
+          path: dist/*.tar.gz
+          if-no-files-found: error
+
+  build_wheels:
+    needs: [setup, build_sdist]
+    if: needs.setup.outputs.versions != '[]'
+    strategy:
+      fail-fast: false
+      matrix:
+        version: ${{ fromJSON(needs.setup.outputs.versions) }}
+    name: Build opendp ${{ matrix.version }} manylinux_riscv64
+    runs-on: ubuntu-24.04-riscv
+    timeout-minutes: 240
+    env:
+      OPENDP_VERSION: ${{ matrix.version }}
+
+    steps:
+      - name: Download sdist
+        uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c  # v8.0.1
+        with:
+          name: opendp-${{ env.OPENDP_VERSION }}-sdist
+          path: dist/
+
+      - id: sdist_path
+        run: echo "path=$(echo dist/*.tar.gz)" >> "$GITHUB_OUTPUT"
+
+      # One cp3xx-abi3 wheel (setup.cfg's [bdist_wheel] py_limited_api, since the
+      # cdylib has no CPython linkage at all - see the file header); cibuildwheel
+      # builds it once and reuses it across the other selectors.
+      - name: Build and test wheel
+        uses: pypa/cibuildwheel@1828c10ab37f080699c7b81cea34097c684a7074  # v4.2.0
+        with:
+          package-dir: ${{ steps.sdist_path.outputs.path }}
+        env:
+          CIBW_ARCHS: riscv64
+          CIBW_BUILD: 'cp312-* cp313-* cp314-*'
+          CIBW_MANYLINUX_RISCV64_IMAGE: ${{ env.MANYLINUX_RISCV64_IMAGE }}
+          # No Rust in the manylinux image; default features pull in a vendored
+          # OpenSSL build (openssl-src), which needs perl + a C compiler, and
+          # riscv64's atomics need libatomic explicitly (same packages upstream's
+          # own CIBW_BEFORE_BUILD_LINUX installs for this exact reason).
+          CIBW_BEFORE_ALL_LINUX: >-
+            curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- --profile minimal -y &&
+            dnf install -y perl-core openssl-devel pkgconfig libatomic
+          CIBW_ENVIRONMENT: 'PATH="$PATH:$HOME/.cargo/bin"'
+          CIBW_TEST_COMMAND: python -c "import opendp"
+
+      - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a  # v7.0.1
+        with:
+          name: opendp-${{ matrix.version }}-manylinux_riscv64
+          path: ./wheelhouse/*.whl
+          if-no-files-found: error
+
+  publish:
+    name: Publish opendp ${{ matrix.version }}
+    needs: [setup, build_sdist, build_wheels]
+    if: needs.setup.outputs.versions != '[]'
+    strategy:
+      fail-fast: false
+      matrix:
+        version: ${{ fromJSON(needs.setup.outputs.versions) }}
+    permissions:
+      contents: write
+      pull-requests: write
+    uses: $/.github/workflows/_publish-wheel.yml
+    secrets:
+      app-private-key: ${{ secrets.RISEPROJECT_APP_PRIVATE_KEY }}
+    with:
+      artifact-pattern: opendp-${{ matrix.version }}-manylinux_riscv64
diff --git a/docs/packages/opendp.yaml b/docs/packages/opendp.yaml
new file mode 100644
index 000000000000..e45d64ed87bf
--- /dev/null
+++ b/docs/packages/opendp.yaml
@@ -0,0 +1,5 @@
+package-name: opendp
+source-code: https://github.com/opendp/opendp
+license: MIT
+versions:
+- version: 0.16.0