diff --git a/.gitea/workflows/linux-arm-gcc.yml b/.gitea/workflows/linux-arm-gcc.yml
new file mode 100644
index 0000000..05a8703
--- /dev/null
+++ b/.gitea/workflows/linux-arm-gcc.yml
@@ -0,0 +1,125 @@
+
+---
+name: linux-arm-gcc
+on:
+  push:
+    paths:
+      - .gitea/workflows/linux-arm-gcc.yml
+      - 'toolchains/arm-linux-gnueabi.toolchain.cmake'
+      - 'toolchains/arm-linux-gnueabihf.toolchain.cmake'
+      - 3party/**
+      - include/**
+      - src/**
+      - tests/**
+      - CMakeLists.txt
+      - cmake/**
+  pull_request:
+    paths:
+      - .gitea/workflows/linux-arm-gcc.yml
+      - 'toolchains/arm-linux-gnueabi.toolchain.cmake'
+      - 'toolchains/arm-linux-gnueabihf.toolchain.cmake'
+      - 3party/**
+      - include/**
+      - src/**
+      - tests/**
+      - CMakeLists.txt
+      - cmake/**
+concurrency:
+  group: linux-arm-gcc-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  linux-gcc-arm:
+    runs-on: ubuntu-20.04
+    steps:
+    - uses: actions/checkout@v4
+
+    - name: cache-qemu
+      id: cache-qemu
+      uses: actions/cache@v4
+      with:
+        path: qemu-install
+        key: qemu-arm-install-20220502-2
+    - name: install-qemu-build-deps
+      if: steps.cache-qemu.outputs.cache-hit != 'true'
+      run: |
+        sudo apt-get update
+        sudo apt-get install autoconf automake autotools-dev ninja-build
+    - name: checkout-qemu
+      if: steps.cache-qemu.outputs.cache-hit != 'true'
+      uses: actions/checkout@v4
+      with:
+        repository: qemu/qemu
+        path: qemu
+        ref: f5643914a9e8f79c606a76e6a9d7ea82a3fc3e65
+    - name: qemu
+      if: steps.cache-qemu.outputs.cache-hit != 'true'
+      run: |
+        cd qemu
+        ./configure --prefix=$GITHUB_WORKSPACE/qemu-install --target-list=arm-linux-user --disable-system
+        make -j$(nproc)
+        make install
+
+    - name: arm-gnu-toolchain
+      run: |
+        sudo apt-get update
+        sudo apt-get install g++-arm-linux-gnueabi
+
+    - name: build
+      run: |
+        mkdir build && cd build
+        cmake -DCMAKE_TOOLCHAIN_FILE=../toolchains/arm-linux-gnueabi.toolchain.cmake -DSLED_BUILD_TESTS=ON -DSLED_BUILD_TESTS=ON ..
+        cmake --build . -j $(nproc)
+    - name: test
+      run: |
+        export PATH=$GITHUB_WORKSPACE/qemu-install/bin:$PATH
+        cd build
+        TESTS_EXECUTABLE_LOADER=qemu-arm TESTS_EXECUTABLE_LOADER_ARGUMENTS="-L;/usr/arm-linux-gnueabi" ctest --output-on-failure -j $(nproc)
+
+  linux-gcc-armhf:
+    runs-on: ubuntu-20.04
+    steps:
+    - uses: actions/checkout@v4
+
+    - name: cache-qemu
+      id: cache-qemu
+      uses: actions/cache@v4
+      with:
+        path: qemu-install
+        key: qemu-arm-install-20220502-2
+    - name: install-qemu-build-deps
+      if: steps.cache-qemu.outputs.cache-hit != 'true'
+      run: |
+        sudo apt-get update
+        sudo apt-get install autoconf automake autotools-dev ninja-build
+    - name: checkout-qemu
+      if: steps.cache-qemu.outputs.cache-hit != 'true'
+      uses: actions/checkout@v4
+      with:
+        repository: qemu/qemu
+        path: qemu
+        ref: f5643914a9e8f79c606a76e6a9d7ea82a3fc3e65
+    - name: qemu
+      if: steps.cache-qemu.outputs.cache-hit != 'true'
+      run: |
+        cd qemu
+        ./configure --prefix=$GITHUB_WORKSPACE/qemu-install --target-list=arm-linux-user --disable-system
+        make -j$(nproc)
+        make install
+
+    - name: arm-gnu-toolchain
+      run: |
+        sudo apt-get update
+        sudo apt-get install g++-arm-linux-gnueabihf
+
+    - name: build
+      run: |
+        mkdir build && cd build
+        cmake -DCMAKE_TOOLCHAIN_FILE=../toolchains/arm-linux-gnueabihf.toolchain.cmake -DSLED_BUILD_TESTS=ON ..
+        cmake --build . -j $(nproc)
+    - name: test
+      run: |
+        export PATH=$GITHUB_WORKSPACE/qemu-install/bin:$PATH
+        cd build
+        TESTS_EXECUTABLE_LOADER=qemu-arm TESTS_EXECUTABLE_LOADER_ARGUMENTS="-L;/usr/arm-linux-gnueabihf" ctest --output-on-failure -j $(nproc)
+
diff --git a/toolchains/arm-linux-gnueabi.toolchain.cmake b/toolchains/arm-linux-gnueabi.toolchain.cmake
new file mode 100644
index 0000000..e96e0a9
--- /dev/null
+++ b/toolchains/arm-linux-gnueabi.toolchain.cmake
@@ -0,0 +1,27 @@
+set(CMAKE_SYSTEM_NAME Linux)
+set(CMAKE_SYSTEM_PROCESSOR arm)
+
+set(CMAKE_C_COMPILER "arm-linux-gnueabi-gcc")
+set(CMAKE_CXX_COMPILER "arm-linux-gnueabi-g++")
+
+if(NOT CMAKE_FIND_ROOT_PATH_MODE_PROGRAM)
+    set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
+endif()
+if(NOT CMAKE_FIND_ROOT_PATH_MODE_LIBRARY)
+    set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
+endif()
+if(NOT CMAKE_FIND_ROOT_PATH_MODE_INCLUDE)
+    set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
+endif()
+if(NOT CMAKE_FIND_ROOT_PATH_MODE_PACKAGE)
+    set(CMAKE_FIND_ROOT_PATH_MODE_PACKAGE ONLY)
+endif()
+
+set(CMAKE_C_FLAGS "-march=armv7-a -mfloat-abi=softfp -mfpu=neon")
+set(CMAKE_CXX_FLAGS "-march=armv7-a -mfloat-abi=softfp -mfpu=neon")
+
+add_definitions(-D__STDC_CONSTANT_MACROS)
+
+# cache flags
+set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS}" CACHE STRING "c flags")
+set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}" CACHE STRING "c++ flags")
diff --git a/toolchains/arm-linux-gnueabihf.toolchain.cmake b/toolchains/arm-linux-gnueabihf.toolchain.cmake
new file mode 100644
index 0000000..9a8cee7
--- /dev/null
+++ b/toolchains/arm-linux-gnueabihf.toolchain.cmake
@@ -0,0 +1,25 @@
+set(CMAKE_SYSTEM_NAME Linux)
+set(CMAKE_SYSTEM_PROCESSOR arm)
+
+set(CMAKE_C_COMPILER "arm-linux-gnueabihf-gcc")
+set(CMAKE_CXX_COMPILER "arm-linux-gnueabihf-g++")
+
+if(NOT CMAKE_FIND_ROOT_PATH_MODE_PROGRAM)
+    set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
+endif()
+if(NOT CMAKE_FIND_ROOT_PATH_MODE_LIBRARY)
+    set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
+endif()
+if(NOT CMAKE_FIND_ROOT_PATH_MODE_INCLUDE)
+    set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
+endif()
+if(NOT CMAKE_FIND_ROOT_PATH_MODE_PACKAGE)
+    set(CMAKE_FIND_ROOT_PATH_MODE_PACKAGE ONLY)
+endif()
+
+set(CMAKE_C_FLAGS "-march=armv7-a -mfloat-abi=hard -mfpu=neon")
+set(CMAKE_CXX_FLAGS "-march=armv7-a -mfloat-abi=hard -mfpu=neon")
+
+# cache flags
+set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS}" CACHE STRING "c flags")
+set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}" CACHE STRING "c++ flags")