how to write to an ext4 filesystem on mac code example
Example: macos read ext4
brew cask install osxfuse
brew install ext4fuse
sudo ext4fuse /dev/disk3s1 ~/tmp/MY_DISK_PARTITION -o allow_other
brew cask install osxfuse
brew install ext4fuse
sudo ext4fuse /dev/disk3s1 ~/tmp/MY_DISK_PARTITION -o allow_other