- The macOS package wasn't working, so remove it from the matrix build.
- Provide a macOS dedicated build script which builds a nice DMG and notarizes
it.
- Binaries can be added to any existing tag, thus avoiding the issue of deleting
and recreating a tag, which is a bad thing to do. Note that existing binaries
won't be overridden, so delete whatever's already there first if you need to
add new binaries.
