From 35af12aac2fd06bfc0bb805a41a5b4a71fe75a8a Mon Sep 17 00:00:00 2001
From: Aric Camarata <aric.camarata@gmail.com>
Date: Tue, 30 Jun 2026 14:59:56 -0400
Subject: [PATCH] add opt-in telemetry via @acamarata/telemetry (off by
 default)

---
 TELEMETRY.md |  8 ++++++++
 package.json |  3 ++-
 src/index.ts | 11 +++++++++++
 3 files changed, 21 insertions(+), 1 deletion(-)
 create mode 100644 TELEMETRY.md

diff --git a/TELEMETRY.md b/TELEMETRY.md
new file mode 100644
index 0000000..99cfaa4
--- /dev/null
+++ b/TELEMETRY.md
@@ -0,0 +1,8 @@
+# Telemetry Disclosure
+
+This package supports opt-in anonymous usage telemetry via [`@acamarata/telemetry`](https://github.com/acamarata/telemetry).
+
+Telemetry is **off by default**. No data is sent unless you set `ACAMARATA_TELEMETRY=1`.
+
+Full disclosure (what is sent, where it goes, how to disable):
+[github.com/acamarata/telemetry/blob/main/TELEMETRY.md](https://github.com/acamarata/telemetry/blob/main/TELEMETRY.md)
diff --git a/package.json b/package.json
index f4855ff..bc0cf37 100644
--- a/package.json
+++ b/package.json
@@ -58,7 +58,8 @@
     "typedoc": "^0.28.19",
     "typedoc-plugin-markdown": "^4.11.0",
     "typescript": "^5.9.3",
-    "typescript-eslint": "^8.56.1"
+    "typescript-eslint": "^8.56.1",
+    "@acamarata/telemetry": "^0.1.0"
   },
   "publishConfig": {
     "access": "public",
diff --git a/src/index.ts b/src/index.ts
index a6366b1..9769f02 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -72,3 +72,14 @@ export {
   ODEH_DESCRIPTIONS,
   WGS84,
 } from "./types.js";
+
+// ── Opt-in anonymous telemetry ────────────────────────────────────────────────
+// Off by default. Enable: ACAMARATA_TELEMETRY=1
+// What is sent + how to disable: https://github.com/acamarata/telemetry/blob/main/TELEMETRY.md
+import('@acamarata/telemetry')
+  .then(({ track }) =>
+    track('load', { package: 'moon-sighting', version: '1.1.2' }),
+  )
+  .catch(() => {
+    // telemetry not installed or disabled — that's fine
+  });