(ELI5) How do I put this HA trigger template into node red?

Are you sure? Let me clarify what this particular flow is supposed to do. Unlike the first automation I asked about in this thread, this isn’t supposed to trigger upon me using the PC but upon me not using the PC for 30m. In that case it should activate my PC’s sleep mode.

This node always has a green dot when I’ve used my PC recently. Thus, the node should be connected via the bottom output, no?

The top output will fire when the statement in the node evaluates to true. If you check the output to debug inside the event state it will show what is happening when the entity updates.

There is an omission on my part, I did not specify the current time. Change toMillis() to $toMillis($now())