Getting browsermod to target the device it's running on for navigation changes

I’m trying to create an automation like this:

→ User taps an NFC tag
→ Browsermod redirects that user to a page in Grocy to log the task

I’m just having trouble configuring this behavior.

→ If I don’t specify a target device in BrowserMod, I believe it will run on all registered devices. Naturally this would mean that it would sent irrelevant navigation cues to non-intended users.

→ But if I specify the target device, it won’t know who’s tapped the NFC tag

Is there any way to specify something like “this device” as a target?