diff --git a/.github/workflows/build.yaml b/.github/workflows/build.yaml
new file mode 100644
index 0000000..4fdbea5
--- /dev/null
+++ b/.github/workflows/build.yaml
@@ -0,0 +1,89 @@
+name: Build & Release libspconv
+
+on:
+  workflow_dispatch:
+    inputs:
+      tag:
+        description: 'release tag'
+        required: false
+        default: ''
+      text:
+        description: 'release body'
+        required: false
+        default: ''
+  pull_request:
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+permissions:
+  contents: write
+
+jobs:
+  build:
+    name: Build libspconv
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - cuda: cuda11.4
+            image: nvcr.io/nvidia/cuda:11.4.3-devel-ubuntu20.04
+          - cuda: cuda11.8
+            image: nvcr.io/nvidia/cuda:11.8.0-devel-ubuntu20.04
+    container:
+      image: ${{ matrix.image }}
+
+    steps:
+      - name: Install git
+        run: |
+          apt-get update
+          apt-get install -y git
+          git --version
+
+      - name: Checkout repository
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+          submodules: recursive
+
+      - name: Build libspconv
+        run: |
+          chmod +x ./scripts/setup_env.sh
+          ./scripts/setup_env.sh
+          chmod +x ./scripts/build.sh
+          ./scripts/build.sh
+          ls -lh build/
+
+      - name: Find built tar.gz
+        if: ${{ github.event_name != 'pull_request' }}
+        id: artifact
+        run: |
+          FILE=$(ls build/libspconv-*.tar.gz)
+          if [ -z "$FILE" ]; then
+            echo "No build/libspconv-*.tar.gz found!"
+            exit 1
+          fi
+          FILENAME=$(basename "$FILE")
+          echo "filepath=$FILE" >> $GITHUB_OUTPUT
+          echo "filename=$FILENAME" >> $GITHUB_OUTPUT
+          echo "Found artifact: $FILENAME"
+
+      - name: Upload artifact
+        if: ${{ github.event_name != 'pull_request' }}
+        uses: actions/upload-artifact@v4
+        with:
+          name: ${{ steps.artifact.outputs.filename }}
+          path: ${{ steps.artifact.outputs.filepath }}
+
+      - name: Create Release
+        if: ${{ github.event_name != 'pull_request' && github.event.inputs.tag != '' }}
+        uses: softprops/action-gh-release@v2
+        with:
+          token: ${{ secrets.GITHUB_TOKEN }}
+          tag_name: ${{ github.event.inputs.tag }}
+          name: libspconv ${{ github.event.inputs.tag }}
+          body: |
+            ${{ github.event.inputs.text }}
+          files: ${{ steps.artifact.outputs.filepath }}
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..a007fea
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+build/*
diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..0499a7e
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,6 @@
+[submodule "spconv"]
+	path = spconv
+	url = https://github.com/traveller59/spconv.git
+[submodule "cumm"]
+	path = cumm
+	url = https://github.com/FindDefinition/cumm.git
diff --git a/cumm b/cumm
new file mode 160000
index 0000000..7ff78af
--- /dev/null
+++ b/cumm
@@ -0,0 +1 @@
+Subproject commit 7ff78afcf0070fef7ef3215762cd531f5aa5802e
diff --git a/patches/spconv_v2.3.6.patch b/patches/spconv_v2.3.6.patch
new file mode 100644
index 0000000..dbab125
--- /dev/null
+++ b/patches/spconv_v2.3.6.patch
@@ -0,0 +1,27 @@
+diff --git a/example/libspconv/run_build.sh b/example/libspconv/run_build.sh
+index e3b873c..d61e9cc 100644
+--- a/example/libspconv/run_build.sh
++++ b/example/libspconv/run_build.sh
+@@ -4,11 +4,14 @@ SCRIPT_DIR=$( cd -- "$( dirname -- "${BASH_SOURCE[0]}" )" &> /dev/null && pwd )
+ 
+ git clone https://github.com/FindDefinition/cumm.git $SCRIPT_DIR/cumm
+ 
+-export CUMM_CUDA_VERSION=11.4 # cuda version, required but only used for flag selection when build libspconv.
++export CUMM_CUDA_VERSION=$1
+ export CUMM_DISABLE_JIT=1
+ export SPCONV_DISABLE_JIT=1
+ export CUMM_INCLUDE_PATH="\${CUMM_INCLUDE_PATH}" # if you use cumm as a subdirectory, you need this to find cumm includes.
+-export CUMM_CUDA_ARCH_LIST="7.5;8.6" # cuda arch flags
++export CUMM_CUDA_ARCH_LIST=$2
++
++echo "CUMM_CUDA_VERSION=${CUMM_CUDA_VERSION}"
++echo "CUMM_CUDA_ARCH_LIST=${CUMM_CUDA_ARCH_LIST}"
+ 
+ python -m spconv.gencode --include=$SCRIPT_DIR/spconv/include --src=$SCRIPT_DIR/spconv/src --inference_only=True
+ 
+@@ -16,4 +19,4 @@ python -m spconv.gencode --include=$SCRIPT_DIR/spconv/include --src=$SCRIPT_DIR/
+ mkdir -p $SCRIPT_DIR/build
+ cd $SCRIPT_DIR/build
+ cmake ..
+-cmake --build $SCRIPT_DIR/build --config Release -j 8 # --verbose
++cmake --build $SCRIPT_DIR/build --config Release -j$(nproc)
diff --git a/scripts/build.sh b/scripts/build.sh
new file mode 100755
index 0000000..e2734ad
--- /dev/null
+++ b/scripts/build.sh
@@ -0,0 +1,57 @@
+#!/bin/bash
+
+set -e
+
+CUDA_VERSION=$(nvcc --version | grep release | sed -E 's/.*release ([0-9]+\.[0-9]+).*/\1/')
+CUDA_MAJOR=${CUDA_VERSION_RAW%.*}
+CUDA_MINOR=${CUDA_VERSION_RAW#*.}
+
+CUDA_ARCH_LIST="8.0;8.6"
+
+if [[ "$CUDA_MAJOR" -gt 11 ]] || [[ "$CUDA_MAJOR" -eq 11 && "$CUDA_MINOR" -gt 4 ]]; then
+  CUDA_ARCH_LIST="${CUDA_ARCH_LIST};8.9"
+fi
+
+export CUMM_CUDA_VERSION=${CUDA_VERSION}
+export CUMM_DISABLE_JIT=1
+export CUMM_CUDA_ARCH_LIST=${CUDA_ARCH_LIST}
+
+pip3 install -e cumm
+pip3 install -e spconv
+
+SCRIPT_DIR=$( cd -- "$( dirname -- "${BASH_SOURCE[0]}" )" &> /dev/null && pwd )
+PROJECT_DIR=$(dirname $SCRIPT_DIR)
+ln -s $PROJECT_DIR/cumm $PROJECT_DIR/spconv/example/libspconv/cumm
+
+cd $PROJECT_DIR/spconv
+
+ARCH="$(uname -m)"
+VERSION="$(git describe --tags --dirty --always)"
+
+git apply $PROJECT_DIR/patches/spconv_v2.3.6.patch
+bash example/libspconv/run_build.sh ${CUDA_VERSION} ${CUDA_ARCH_LIST}
+
+PKG_NAME=libspconv-${VERSION}-${ARCH}-cuda${CUDA_VERSION}
+PKG_DIR=${PROJECT_DIR}/build/${PKG_NAME}
+
+echo "[INFO] Packaging ${PKG_NAME}"
+
+rm -rf ${PKG_DIR}
+mkdir -p ${PKG_DIR}
+mkdir -p ${PKG_DIR}/include
+mkdir -p ${PKG_DIR}/lib
+
+# headers
+cp -r example/libspconv/spconv/include/* ${PKG_DIR}/include/
+cp -r example/libspconv/cumm/include/*   ${PKG_DIR}/include/
+
+# library
+cp example/libspconv/build/spconv/src/libspconv.so ${PKG_DIR}/lib/
+
+cd ${PROJECT_DIR}/build
+
+tar -czvf ${PKG_NAME}.tar.gz -C ${PKG_DIR} .
+
+rm -rf ${PKG_DIR}
+
+echo "[DONE] ${PKG_NAME}.tar.gz generated"
diff --git a/scripts/setup_env.sh b/scripts/setup_env.sh
new file mode 100755
index 0000000..0b0aaf9
--- /dev/null
+++ b/scripts/setup_env.sh
@@ -0,0 +1,12 @@
+#!/bin/bash
+
+set -e
+
+apt-get update && \
+apt-get install python3.8-dev python3-pip wget curl -y
+update-alternatives --install /usr/bin/python python /usr/bin/python3 1
+
+wget https://github.com/Kitware/CMake/releases/download/v3.27.9/cmake-3.27.9-linux-x86_64.tar.gz
+tar -xzf cmake-3.27.9-linux-x86_64.tar.gz
+mv cmake-3.27.9-linux-x86_64 /opt/cmake
+ln -sf /opt/cmake/bin/cmake /usr/local/bin/cmake
\ No newline at end of file
diff --git a/spconv b/spconv
new file mode 160000
index 0000000..125a194
--- /dev/null
+++ b/spconv
@@ -0,0 +1 @@
+Subproject commit 125a194d895b1bc3ad6ff907bc72641548397b32