diff --git a/.github/workflows/build-ruff-format.yml b/.github/workflows/build-ruff-format.yml
new file mode 100644
index 00000000000..1f48a3926d3
--- /dev/null
+++ b/.github/workflows/build-ruff-format.yml
@@ -0,0 +1,137 @@
+# SPDX-FileCopyrightText: 2026 The RISE Project
+# SPDX-License-Identifier: MIT
+---
+# This workflow is based on the `linux` job of
+# https://github.com/reflex-dev/ruff-format/blob/v0.5.4/.github/workflows/CI.yml
+name: Build ruff-format wheels (riscv64)
+
+on:
+  workflow_dispatch:
+    inputs:
+      version:
+        description: 'Version glob to (re)build; empty builds every version of docs/packages/ruff-format.yaml not released yet'
+        required: false
+        default: ''
+  pull_request:
+    branches: [main]
+    paths:
+      - '.github/workflows/build-ruff-format.yml'
+      - 'docs/packages/ruff-format.yaml'
+  push:
+    branches: [main]
+    paths:
+      - '.github/workflows/build-ruff-format.yml'
+      - 'docs/packages/ruff-format.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
+
+jobs:
+  setup:
+    uses: $/.github/workflows/_setup.yml
+    with:
+      package: ruff-format
+      version: ${{ inputs.version }}
+
+  build_wheels:
+    needs: [setup]
+    if: needs.setup.outputs.versions != '[]'
+    name: Build ruff-format ${{ matrix.version }} ${{ matrix.tag }}-manylinux_riscv64
+    runs-on: ubuntu-24.04-riscv
+    timeout-minutes: 90
+    strategy:
+      fail-fast: false
+      matrix:
+        version: ${{ fromJSON(needs.setup.outputs.versions) }}
+        # tag is a real matrix dimension (not just an include-only key) so
+        # the two legs below update their own combination instead of
+        # collapsing into one (gotcha 402).
+        tag: [cp38-abi3, cp314t]
+        include:
+          # pyo3's abi3-py38 feature is on unconditionally (Cargo.toml), so one
+          # abi3 wheel serves every GIL-ful interpreter; pyo3 disables abi3
+          # under Py_GIL_DISABLED, giving the free-threaded build its own
+          # wheel (matches the cp38-abi3 + cp314-cp314t split upstream
+          # publishes). cp38 isn't in the manylinux_2_39_riscv64 image (it
+          # ships cp39-cp315), so the abi3 wheel is built on cp39 instead.
+          - tag: cp38-abi3
+            build: >-
+              cp39-manylinux_riscv64 cp310-manylinux_riscv64
+              cp311-manylinux_riscv64 cp312-manylinux_riscv64
+              cp313-manylinux_riscv64 cp314-manylinux_riscv64
+          - tag: cp314t
+            build: cp314t-manylinux_riscv64
+
+    env:
+      RUFF_FORMAT_VERSION: ${{ matrix.version }}
+
+    steps:
+      - name: Checkout ruff-format v${{ env.RUFF_FORMAT_VERSION }}
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1  # v7.0.1
+        with:
+          repository: reflex-dev/ruff-format
+          ref: v${{ env.RUFF_FORMAT_VERSION }}
+          persist-credentials: false
+
+      - name: Build wheels
+        uses: pypa/cibuildwheel@1828c10ab37f080699c7b81cea34097c684a7074  # v4.2.0
+        with:
+          output-dir: wheelhouse/
+        env:
+          # musllinux is dropped: rustup.rs ships no riscv64 musl toolchain.
+          CIBW_BUILD: ${{ matrix.build }}
+          CIBW_MANYLINUX_RISCV64_IMAGE: ${{ env.MANYLINUX_RISCV64_IMAGE }}
+          # ruff-format ships no [tool.cibuildwheel], so the Rust toolchain
+          # its maturin backend needs is installed in-container here.
+          CIBW_BEFORE_ALL_LINUX: >-
+            curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y
+          CIBW_ENVIRONMENT_LINUX: PATH="$PATH:$HOME/.cargo/bin"
+          # Upstream ships no test suite at all; exercise the three bound
+          # functions against known-good outputs (verified against the
+          # upstream ruff CLI) instead of an import-only smoke test.
+          # ruff-format is a pure-Rust maturin project (no python-source in
+          # pyproject.toml), so maturin wraps the extension in a generated
+          # ruff_format/__init__.py ("from .ruff_format import *") rather than
+          # shipping it as a flat top-level .so (gotcha 308) - probe the
+          # compiled submodule via sys.modules, not the package's own
+          # __file__, which is the shim.
+          CIBW_TEST_COMMAND: >-
+            python -c "import ruff_format as m, importlib.metadata as md, sys;
+            assert sys.modules['ruff_format.ruff_format'].__file__.endswith('.so'), sys.modules['ruff_format.ruff_format'].__file__;
+            assert any(str(p).endswith('licenses/LICENSE') for p in md.files('ruff-format'));
+            assert m.is_valid_syntax('x = 1');
+            assert not m.is_valid_syntax('def f(:');
+            m.parse_code('x = 1');
+            assert m.format_string('def hello(  x,y,   z  ):\n    print( x+y+z )\n') == 'def hello(x, y, z):\n    print(x + y + z)\n';
+            assert m.format_string('result = some_function_name(argument_one, argument_two, argument_three, argument_four)\n') == 'result = some_function_name(\n    argument_one, argument_two, argument_three, argument_four\n)\n';
+            assert m.format_string('result = some_function_name(argument_one, argument_two, argument_three, argument_four)\n', line_width=120) == 'result = some_function_name(argument_one, argument_two, argument_three, argument_four)\n'"
+
+      - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a  # v7.0.1
+        with:
+          name: ruff-format-${{ env.RUFF_FORMAT_VERSION }}-${{ matrix.tag }}-manylinux_riscv64
+          path: wheelhouse/*.whl
+          if-no-files-found: error
+
+  publish:
+    name: Publish ruff-format ${{ 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: ${{ secrets.RISEPROJECT_APP_PRIVATE_KEY }}
+    with:
+      artifact-pattern: ruff-format-${{ matrix.version }}-*-manylinux_riscv64
diff --git a/docs/packages/ruff-format.yaml b/docs/packages/ruff-format.yaml
new file mode 100644
index 00000000000..62550502e5d
--- /dev/null
+++ b/docs/packages/ruff-format.yaml
@@ -0,0 +1,5 @@
+package-name: ruff-format
+source-code: https://github.com/reflex-dev/ruff-format
+license: MIT
+versions:
+- version: 0.5.4