You will be creating a webhook on your Plex server that sends activity from your Plex to this server, where the 10 most recent "media.play" events will be stored under your unique Plex account id.

Step 1: Add the Webhook URL below as a webhook on your Plex server by going to Settings and selecting Webhooks (5th from the top).

Webhook URL:
https://mariolurig.com/trmnl/plex.php

Step 2: Play something on your Plex for a few seconds (Plex doesn't transmit account username + id when the webhook is created).

Step 3: Use the form below to get your Account Id and enter that into the TRMNL field.
Tip: You can check your username on Plex.tv