Wellby syncing runs through the Mentat browser extension: you log in to Wellby yourself and the extension reads that session — Mentat never sees your Wellby password. One-time setup, about 3 minutes, on Chrome, Edge, or Brave (desktop only — mobile browsers can't run extensions):

1. Download the extension, then unzip it somewhere permanent (e.g. Documents\mentat-extension) — the browser runs it from that folder, so don't delete it.
2. Open a new tab to chrome://extensions (Edge: edge://extensions) and switch Developer mode ON.
3. Click Load unpacked and pick the unzipped mentat-extension folder.
4. Click the 🧩 puzzle piece by the address bar, pin Mentat Extension, then click its green icon → Sign in with your AWS IAM access key (ask Craig if you need one).
5. Come back to this tab, refresh the page, and press ↻ Sync again.

After that, syncing is one click: be logged in to Wellby anywhere in this browser and press ↻ Sync here.