Just noticed that the Network Card example link in the Readme (https://github.com/fnuecke/oc2/blob/1.18-forge/src/main/java/li/cil/oc2/common/bus/device/item/NetworkInterfaceCardItemDevice.java) 404s, I think this is the correct link: https://github.com/fnuecke/oc2/tree/1.18-forge/src/main/java/li/cil/oc2/common/item/NetworkInterfaceCardItem.java

Thanks, will fix!

(Sorry for not tagging the issue correctly, the mobile site won't let me assign a tag for some reason)