The developer workspace is the wrong place to look. You’ll write the driver in Lua on your local machine in the IDE of your choice, and then use the CLI to package and install the driver onto your hub. The two links below are good places to start - one has instructions for installing the hello world example driver and the other has info on setting up your IDE.
He’s right, @professordave. Edge drivers can help you integrate your Zigbee and Z-Wave devices.
If you have any questions regarding your integration and I can help you out