diff --git a/docs/PRODUCT-MODEL.md b/docs/PRODUCT-MODEL.md
index 480c558..1991510 100644
--- a/docs/PRODUCT-MODEL.md
+++ b/docs/PRODUCT-MODEL.md
@@ -42,7 +42,7 @@ Scope: keep small and lean now; rebuild a larger system once there are a few tho
 **Info tags (bulk)**
 - e.g. **$1.50/tag** one-off **or** an annual operator license (e.g. $30/yr for up to 100 tags + content management) — no SMS, near-100% margin; tune with the parks use case
 
-**Pinch points to nail before launch**
+**✅ Done**: server-side metering (per-tag credits, admin top-up), renewal date + lazy expiry, unlock notice to the owner (ntfy/SMS) when gated by lapsed or credits. **Remaining pinch points:**
 1. **Metering enforced server-side** — count only *sent* (OK:0) SMS; block when credits hit 0 → triggers the unlock flow.
 2. **Renewal reminders** (30/7/1 days before) + **grace period** (~7 days) before lapsed.
 3. **Top-up profitability at the 6¢ prepaid rate** (works above; even better on a plan).