diff --git a/.github/workflows/build-multiarch.yaml b/.github/workflows/build-multiarch.yaml
new file mode 100644
index 0000000..dec199b
--- /dev/null
+++ b/.github/workflows/build-multiarch.yaml
@@ -0,0 +1,95 @@
+name: Build Multiarch
+
+on:
+  push:
+    branches: [release]
+  pull_request:
+    branches: [master, release]
+
+jobs:
+  multi-arch-test:
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - arch: armv6
+            distro: bookworm
+          - arch: armv7
+            distro: bookworm
+          - arch: aarch64
+            distro: bookworm
+          - arch: s390x
+            distro: bookworm
+          - arch: ppc64le
+            distro: bookworm
+
+          - arch: armv7
+            distro: ubuntu_latest
+          - arch: aarch64
+            distro: ubuntu_latest
+          - arch: riscv64
+            distro: ubuntu_devel
+          - arch: s390x
+            distro: ubuntu_latest
+          - arch: ppc64le
+            distro: ubuntu_latest
+
+          - arch: armv7
+            distro: ubuntu22.04
+          - arch: aarch64
+            distro: ubuntu22.04
+          # - arch: riscv64
+          #   distro: ubuntu22.04
+          - arch: s390x
+            distro: ubuntu22.04
+          - arch: ppc64le
+            distro: ubuntu22.04
+          # ubuntu with riscv64 has three failures and a crash on test_SolverInterface_basics in scipy's root function; also test_is_poly_positive and test_bend_rounded_Miller_Re_correction
+          # ubuntu20.04 is too old, fluids dropped support with numpy 2.0 compat
+
+          - arch: armv6
+            distro: alpine_latest
+          - arch: armv7
+            distro: alpine_latest
+          - arch: aarch64
+            distro: alpine_latest
+          - arch: riscv64
+            distro: alpine_latest
+          - arch: s390x
+            distro: alpine_latest
+          - arch: ppc64le
+            distro: alpine_latest
+          # fedora-latest doesn't work not sure why
+
+    steps:
+      - uses: actions/checkout@v4
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v2
+        with:
+          platforms: all
+      - name: Run on ${{ matrix.arch }}
+        uses: uraimo/run-on-arch-action@v2
+        with:
+          arch: ${{ matrix.arch }}
+          distro: ${{ matrix.distro }}
+          githubToken: ${{ github.token }}
+          install: |
+            if [[ "${{ matrix.distro }}" == "alpine_latest" ]]; then
+              apk update
+              apk add python3 py3-pip py3-scipy py3-matplotlib py3-numpy py3-pandas
+            elif [[ "${{ matrix.distro }}" == "ubuntu_latest" || "${{ matrix.distro }}" == "ubuntu_rolling" || "${{ matrix.distro }}" == "ubuntu_devel" || "${{ matrix.distro }}" == "ubuntu20.04" ||  "${{ matrix.distro }}" == "ubuntu22.04" || "${{ matrix.distro }}" == "bookworm" ]]; then
+              apt-get update
+              apt-get install -y libatlas-base-dev liblapack-dev gfortran libgmp-dev libmpfr-dev libsuitesparse-dev ccache libmpc-dev python3 python3-pip python3-scipy python3-matplotlib python3-numpy python3-pandas
+            fi
+          run: |
+              if python3 -c "import subprocess; exit('no such option' not in subprocess.getoutput('pip3 install --break-system-packages'))"; then
+                # If the exit status is 0 (True), this means the option is not supported
+                python3 -m pip install wheel
+                pip3 install -r requirements_test_multiarch.txt
+              else
+                # If the exit status is 1 (False), this means the option is supported
+                python3 -m pip install wheel --break-system-packages
+                pip3 install -r requirements_test_multiarch.txt --break-system-packages
+              fi
+              python3 -m pytest . -v -m "not online and not thermo and not numba" 
\ No newline at end of file
diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 4c208b2..fa63bf0 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -132,5 +132,8 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Coveralls Finished
+      env:
+        COVERALLS_REPO_TOKEN: ${{ secrets.coveralls }}
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
       run: |
         curl https://coveralls.io/webhook?repo_token=${{ secrets.coveralls }} -d "payload[build_num]=${{ github.sha }}&payload[status]=done"
diff --git a/.github/workflows/build_multi_numpy_scipy.yml b/.github/workflows/build_multi_numpy_scipy.yml
new file mode 100644
index 0000000..134403d
--- /dev/null
+++ b/.github/workflows/build_multi_numpy_scipy.yml
@@ -0,0 +1,130 @@
+name: Build-Test-Multi-Scipy-Numpy
+on:
+  push:
+    branches: [release]
+  pull_request:
+    branches: [master, release]
+    
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        numpy: ['2.0.1'] #['1.16.5', '1.18.5', '1.20.3', '1.22.4', '1.24.4', '1.26.4', '2.0.1']
+        scipy: ['1.14.0'] #['1.7.3', '1.8.1', '1.9.3', '1.10.1', '1.12.0', '1.14.0']
+        python-version: ['3.10'] #['3.7', '3.8', '3.9', '3.10']
+        os: [ubuntu-latest]
+        architecture: ['x64']
+        include:
+          - numpy: '1.16.5'
+            scipy: '1.7.3'
+            python-version: '3.7'
+          - numpy: '1.18.5'
+            scipy: '1.7.3'
+            python-version: '3.7'
+          - numpy: '1.18.5'
+            scipy: '1.8.1'
+            python-version: '3.8'
+          - numpy: '1.18.5'
+            scipy: '1.9.3'
+            python-version: '3.8'
+          - numpy: '1.20.3'
+            scipy: '1.7.3'
+            python-version: '3.7'
+          - numpy: '1.20.3'
+            scipy: '1.7.3'
+            python-version: '3.8'
+          - numpy: '1.20.3'
+            scipy: '1.8.1'
+            python-version: '3.8'
+          - numpy: '1.20.3'
+            scipy: '1.9.3'
+            python-version: '3.8'
+          - numpy: '1.20.3'
+            scipy: '1.10.1'
+            python-version: '3.8'
+          - numpy: '1.22.4'
+            scipy: '1.7.3'
+            python-version: '3.8'
+          - numpy: '1.22.4'
+            scipy: '1.9.3'
+            python-version: '3.8'
+          - numpy: '1.22.4'
+            scipy: '1.10.1'
+            python-version: '3.8'
+          - numpy: '1.24.4'
+            scipy: '1.8.1'
+            python-version: '3.8'
+          - numpy: '1.24.4'
+            scipy: '1.9.3'
+            python-version: '3.10'
+          - numpy: '1.24.4'
+            scipy: '1.10.1'
+            python-version: '3.8'
+          - numpy: '1.24.4'
+            scipy: '1.12.0'
+            python-version: '3.9'
+          - numpy: '1.26.4'
+            scipy: '1.10.1'
+            python-version: '3.9'
+          - numpy: '1.26.4'
+            scipy: '1.12.0'
+            python-version: '3.9'
+          - numpy: '1.26.4'
+            scipy: '1.14.0'
+            python-version: '3.10'
+          - numpy: '2.0.1'
+            scipy: '1.14.0'
+            python-version: '3.10'
+    steps:
+    - uses: actions/checkout@v4
+    - name: Set up Python ${{ matrix.python-version }} ${{ matrix.architecture }}
+      uses: actions/setup-python@v5 
+      with:
+        python-version: ${{ matrix.python-version }}
+        architecture: ${{ matrix.architecture }}
+    - name: cache Linux
+      uses: actions/cache@v4
+      if: startsWith(runner.os, 'Linux')
+      with:
+        path: ~/.cache/pip
+        key: ${{ runner.os }}-pip-${{ hashFiles('**/requirements_test.txt') }}
+        restore-keys: |
+          ${{ runner.os }}-${{ runner.architecture }}-${{ runner.python-version }}pip-
+    - name: Install Ubuntu dependencies
+      if: startsWith(runner.os, 'Linux')
+      run: |
+        # Taken from scipy
+        sudo apt-get update
+        sudo apt-get install -y libopenblas-dev libatlas-base-dev liblapack-dev gfortran libgmp-dev libmpfr-dev libsuitesparse-dev ccache libmpc-dev
+    
+    - name: Install dependencies
+      run: |
+        python -c "import platform; print(platform.platform()); print(platform.architecture())"
+        python -m pip install --upgrade pip
+        python -m pip install wheel
+        pip install -r requirements_test.txt
+        pip install numpy==${{ matrix.numpy }} scipy==${{ matrix.scipy }}
+    - name: Add numba
+      if: ${{ matrix.python-version == '3.6' || matrix.python-version == '3.7' || matrix.python-version == '3.8' || matrix.python-version == '3.9'  || matrix.python-version == '3.10'  || matrix.python-version == '3.11'  || matrix.python-version == '3.12' }}
+      run: |
+        pip install numba
+    - name: Test with pytest
+      run: |
+        pytest . -v --cov-report html --cov=fluids --cov-report term-missing -m "not online and not thermo and not numba"
+        coveralls
+      env:
+        COVERALLS_REPO_TOKEN: ${{ secrets.coveralls }}
+        COVERALLS_PARALLEL: true
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+  finish:
+    needs: build
+    runs-on: ubuntu-latest
+    steps:
+    - name: Coveralls Finished
+      env:
+        COVERALLS_REPO_TOKEN: ${{ secrets.coveralls }}
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      run: |
+        curl https://coveralls.io/webhook?repo_token=${{ secrets.coveralls }} -d "payload[build_num]=${{ github.sha }}&payload[status]=done"
\ No newline at end of file
diff --git a/conftest.py b/conftest.py
index 536920c..6052d17 100644
--- a/conftest.py
+++ b/conftest.py
@@ -5,6 +5,10 @@
 ver_tup = platform.python_version_tuple()[0:2]
 ver_tup = tuple(int(i) for i in ver_tup)
 
+
+is_x86_or_x86_64 = platform.machine().lower() in ('i386', 'i686', 'x86', 'x86_64', 'amd64')
+
+
 def pytest_ignore_collect(path):
     path = str(path)
     if 'manual_runner' in path or 'make_test_stubs' in path or 'plot' in path or 'prerelease' in path:
@@ -15,7 +19,7 @@ def pytest_ignore_collect(path):
         return True
     if 'is_pypy' and 'test_spa' in path:
         return True
-    if ver_tup < (3, 7) or ver_tup >= (3, 13) or is_pypy:
+    if ver_tup < (3, 7) or ver_tup >= (3, 13) or is_pypy or not is_x86_or_x86_64:
         # numba does not yet run under pypy
         if 'numba' in path:
             return True
diff --git a/requirements_test_multiarch.txt b/requirements_test_multiarch.txt
new file mode 100644
index 0000000..4a1b1da
--- /dev/null
+++ b/requirements_test_multiarch.txt
@@ -0,0 +1,9 @@
+pytest
+pytest-cov
+sympy
+thefuzz
+pint
+pytz
+IPython
+sphinx
+wheel
diff --git a/tests/test_numerics.py b/tests/test_numerics.py
index 00d7823..1d41fa5 100644
--- a/tests/test_numerics.py
+++ b/tests/test_numerics.py
@@ -512,7 +512,7 @@ def to_solve(x):
 
 def test_is_poly_positive():
     assert not is_poly_positive([4, 3, 2, 1])
-    for high in range(0, 100, 5):
+    for high in range(0, 30, 5):
         assert is_poly_positive([4, 3, 2, 1], domain=(0, 10**high))
 
     coeffs_4alpha = [2.1570803657937594e-10, 2.008831101045556e-06, -0.004656598178209313, 2.8575882247542514]