enable macOS in CI

Author: adeebshihadeh

.github/workflows/tests.yml

@@ -17,9 +17,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        # TODO: fixup macOS
-        #os: ['macos-latest', 'ubuntu-latest']
-        os: ['ubuntu-latest']
+        os: ['macos-latest', 'ubuntu-latest']
     timeout-minutes: 10
     steps:
       - uses: actions/checkout@v4

setup.sh

@@ -8,6 +8,8 @@ PLATFORM=$(uname -s)
 
 echo "installing dependencies"
 if [[ $PLATFORM == "Darwin" ]]; then
+  export ZMQ=1
+
   export HOMEBREW_NO_AUTO_UPDATE=1
   brew install python3 zeromq
 elif [[ $PLATFORM == "Linux" ]]; then