Hi @TJvV, No the custom udev rules @spanceac mentions can just be added the once to the downloaded image. So you do the following:
download the OS .zip from dashboard
extract the .zip and mount the resin-boot partition ( on macOS this is as simple as double clicking the .img
add the udev rules fields to config.json in the resin-boot partition as described in https://github.com/balena-os/meta-balena#udevrules
You can flash this image to as many devices as you want and all of them will have the udev rules applied.