Don't need them if you're just building - this will fetch libraries and headers on-the-fly, but won't make them available in the runtime - licensing and you need more than these for the runtime anyway (need the daemon for camera discovery)
Where to get the IDS SDK for the runtime
You must have these on the same subnet as the node
First steps with the IDS SDK tools for configuring the cameras
It's confusing for someone new. Key points: