diff --git a/.github/workflows/build_multi_platform.yml b/.github/workflows/build_multi_platform.yml
new file mode 100644
index 0000000..bd19128
--- /dev/null
+++ b/.github/workflows/build_multi_platform.yml
@@ -0,0 +1,27 @@
+name: build on multi-plarform
+on:
+  workflow_dispatch:
+jobs:
+  job_1:
+    name: ${{ matrix.os }}
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        os: [windows-latest, ubuntu-latest, macos-latest]
+    steps:
+    - name: git checkout
+      uses: actions/checkout@v4
+    - name: build artifacts
+      run: |
+        eval "$(conda shell.bash activate)"
+        conda install -c conda-forge -y pyyaml jinja2 requests ninja
+        python setup.py -n all
+    - name: upload artifacts
+      uses: actions/upload-artifact@v4
+      if: ${{ matrix.os == 'macos-latest' }}
+      with:
+        retention-days: 3
+        path: |
+          dist/sortmerna*Darwin.7z
+          dist/sortmerna*Darwin.sh
+          dist/sortmerna*Darwin.tar.gz
diff --git a/.github/workflows/build_osx.yml b/.github/workflows/build_osx.yml
deleted file mode 100644
index d6c1141..0000000
--- a/.github/workflows/build_osx.yml
+++ /dev/null
@@ -1,51 +0,0 @@
-name: test build on osx
-on:
-  workflow_dispatch:
-jobs:
-  job_1:
-    name: test job
-    runs-on: macos-latest
-    steps:
-    - name: git checkout
-      uses: actions/checkout@v4
-    - name: build artifacts
-      run: |
-        #echo "conda: $(which conda)"
-        #echo "CONDA/bin: $CONDA/bin"
-        #ls -l $CONDA/bin
-        #echo "GITHUB_PATH: $GITHUB_PATH"
-        #echo "PATH: $PATH"
-        #echo "CONDA/bin/python --version"
-        #$CONDA/bin/python --version
-        #echo "running 'conda search -c conda-forge requests'"
-        #conda search -c conda-forge requests
-        #echo "pip version: $(pip --version)"
-        #echo "pip list:"
-        #pip list  <- only certifi 2024.2.2 and pip 24.0 installed
-        #echo "check requests"
-        #pip show requests   <- throws error if not installed
-        # OK - python + brew
-        #echo "pip install pyyaml jinja2 requests:"
-        #pip install pyyaml jinja2 requests
-        #echo "brew install ninja"
-        #brew install ninja
-        #echo "running 'python setup.py -n all'"
-        #python setup.py -n all
-        # OK - conda
-        echo "SHELL: $SHELL"
-        echo "running conda shell.bash activate"
-        eval "$(conda shell.bash activate)"
-        conda install -c conda-forge -y pyyaml jinja2 requests ninja
-        #conda install -y requests
-        #echo "python: $(which python)"
-        echo "python version: $(python --version)"
-        echo "ninja: $(which ninja)"
-        python setup.py -n all
-    - name: upload artifacts
-      uses: actions/upload-artifact@v4
-      with:
-        retention-days: 3
-        path: |
-          dist/sortmerna*Darwin.7z
-          dist/sortmerna*Darwin.sh
-          dist/sortmerna*Darwin.tar.gz