diff --git a/.github/workflows/build-annotatedyaml.yml b/.github/workflows/build-annotatedyaml.yml
new file mode 100644
index 00000000000..ef7c4166db7
--- /dev/null
+++ b/.github/workflows/build-annotatedyaml.yml
@@ -0,0 +1,111 @@
+# SPDX-FileCopyrightText: 2026 The RISE Project
+# SPDX-License-Identifier: MIT
+---
+# Based on the `build_wheels` and `test` jobs of
+# https://github.com/home-assistant-libs/annotatedyaml/blob/v1.0.2/.github/workflows/ci.yml
+name: Build annotatedyaml wheels (riscv64)
+
+on:
+  workflow_dispatch:
+    inputs:
+      version:
+        description: 'Version glob to (re)build; empty builds every version of docs/packages/annotatedyaml.yaml not released yet'
+        required: false
+        default: ''
+  pull_request:
+    branches: [main]
+    paths:
+      - '.github/workflows/build-annotatedyaml.yml'
+      - 'docs/packages/annotatedyaml.yaml'
+  push:
+    branches: [main]
+    paths:
+      - '.github/workflows/build-annotatedyaml.yml'
+      - 'docs/packages/annotatedyaml.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
+  MUSLLINUX_RISCV64_IMAGE: quay.io/pypa/musllinux_1_2_riscv64
+
+jobs:
+  setup:
+    uses: $/.github/workflows/_setup.yml
+    with:
+      package: annotatedyaml
+      version: ${{ inputs.version }}
+
+  build_wheels:
+    needs: [setup]
+    if: needs.setup.outputs.versions != '[]'
+    name: Build annotatedyaml ${{ matrix.version }} ${{ matrix.python }}-${{ matrix.libc }}_riscv64
+    runs-on: ubuntu-24.04-riscv
+    timeout-minutes: 60
+    strategy:
+      fail-fast: false
+      matrix:
+        version: ${{ fromJSON(needs.setup.outputs.versions) }}
+        python: ["cp313", "cp314", "cp314t"]
+        libc: [manylinux, musllinux]
+
+    env:
+      ANNOTATEDYAML_VERSION: ${{ matrix.version }}
+
+    steps:
+      - name: Checkout annotatedyaml v${{ env.ANNOTATEDYAML_VERSION }}
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1  # v7.0.1
+        with:
+          repository: home-assistant-libs/annotatedyaml
+          ref: v${{ env.ANNOTATEDYAML_VERSION }}
+          persist-credentials: false
+
+      - uses: pypa/cibuildwheel@1828c10ab37f080699c7b81cea34097c684a7074  # v4.2.0
+        env:
+          CIBW_ARCHS: riscv64
+          CIBW_BUILD: ${{ matrix.python }}-${{ matrix.libc }}_riscv64
+          CIBW_MANYLINUX_RISCV64_IMAGE: ${{ env.MANYLINUX_RISCV64_IMAGE }}
+          CIBW_MUSLLINUX_RISCV64_IMAGE: ${{ env.MUSLLINUX_RISCV64_IMAGE }}
+          # Upstream's job-level REQUIRE_CYTHON never reaches the Linux build container.
+          CIBW_ENVIRONMENT: >-
+            REQUIRE_CYTHON=1
+            PYYAML_FORCE_LIBYAML=1
+            PIP_EXTRA_INDEX_URL=https://pypi.riseproject.dev/simple/
+          # musllinux builds PyYAML from sdist; without libyaml it silently lacks CSafeLoader (gotcha 577).
+          CIBW_BEFORE_TEST: ${{ matrix.libc == 'musllinux' && 'apk add --no-cache yaml-dev' || '' }}
+          CIBW_TEST_SOURCES: tests
+          CIBW_TEST_REQUIRES: 'pytest>=8,<9 pytest-codspeed>=3.2.0 pytest-asyncio>=1.2.0,<2'
+          CIBW_TEST_COMMAND: >-
+            python -c "from annotatedyaml import constructors, reference;
+            m = [constructors, reference];
+            bad = [x.__name__ for x in m if not x.__file__.endswith('.so')];
+            assert not bad, bad" &&
+            python -m pytest tests
+
+      - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a  # v7.0.1
+        with:
+          name: annotatedyaml-${{ env.ANNOTATEDYAML_VERSION }}-${{ matrix.python }}-${{ matrix.libc }}_riscv64
+          path: ./wheelhouse/*.whl
+          if-no-files-found: error
+
+  publish:
+    name: Publish annotatedyaml ${{ matrix.version }}
+    needs: [setup, 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: ${{ secrets.RISEPROJECT_APP_PRIVATE_KEY }}
+    with:
+      artifact-pattern: annotatedyaml-${{ matrix.version }}-*riscv64
diff --git a/docs/packages/annotatedyaml.yaml b/docs/packages/annotatedyaml.yaml
new file mode 100644
index 00000000000..3a515ec5301
--- /dev/null
+++ b/docs/packages/annotatedyaml.yaml
@@ -0,0 +1,5 @@
+package-name: annotatedyaml
+source-code: https://github.com/home-assistant-libs/annotatedyaml
+license: Apache-2.0
+versions:
+- version: 1.0.2