add opt-in anonymous telemetry (#1)

* add opt-in telemetry via @acamarata/telemetry (off by default)

* chore: update lockfile for @acamarata/telemetry devDep

* chore: fix prettier formatting on telemetry import

CHANGELOG.md

@@ -5,6 +5,11 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [1.0.4] - 2026-06-13
+
+### Fixed
+- Published package now includes dist/index.d.mts so ESM type resolution under node16/nodenext resolves the import condition.
+
 ## [1.0.3] - 2026-06-10
 
 ### Fixed

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)

package.json

@@ -1,6 +1,6 @@
 {
   "name": "hijri-core",
-  "version": "1.0.3",
+  "version": "1.0.4",
   "description": "Zero-dependency Hijri calendar engine with pluggable calendar support. Includes Umm al-Qura (UAQ) and FCNA/ISNA calendars. Extensible registry for custom calendars.",
   "author": "Aric Camarata",
   "license": "MIT",
@@ -34,7 +34,7 @@
     "typecheck": "tsc --noEmit",
     "pretest": "tsup",
     "test": "node --test test.mjs && node --test test-cjs.cjs",
-    "prepublishOnly": "tsup",
+    "prepack": "pnpm run build",
     "lint": "eslint .",
     "format": "prettier --write src/",
     "format:check": "prettier --check src/",
@@ -58,6 +58,7 @@
   "devDependencies": {
     "@acamarata/eslint-config": "^0.1.0",
     "@acamarata/prettier-config": "^0.1.0",
+    "@acamarata/telemetry": "^0.1.0",
     "@acamarata/tsconfig": "^0.1.0",
     "@eslint/js": "^10.0.1",
     "@types/node": "^22.15.0",

pnpm-lock.yaml

@@ -14,6 +14,9 @@ importers:
       '@acamarata/prettier-config':
         specifier: ^0.1.0
         version: 0.1.0(prettier@3.8.1)
+      '@acamarata/telemetry':
+        specifier: ^0.1.0
+        version: 0.1.0
       '@acamarata/tsconfig':
         specifier: ^0.1.0
         version: 0.1.0
@@ -84,6 +87,10 @@ packages:
     peerDependencies:
       prettier: '>=3.0.0'
 
+  '@acamarata/telemetry@0.1.0':
+    resolution: {integrity: sha512-iP09ZD0bHencHLbv6kQZDgwN9crLCWGKxmiMrfJjhBCoWTgv4koSgg0Li/LFKwCCFluua6orj9fVeQ8eqcJXSQ==}
+    engines: {node: '>=20'}
+
   '@acamarata/tsconfig@0.1.0':
     resolution: {integrity: sha512-bgzyBak43mE+0HhduZX3cvaPjKcggtGGZZMjr35qtYWolsIWgZ9nx7OOswbVYoU35qoUv6rZ0mTK6GbZ8QTYjw==}
     engines: {node: '>=20'}
@@ -1552,6 +1559,8 @@ snapshots:
     dependencies:
       prettier: 3.8.1
 
+  '@acamarata/telemetry@0.1.0': {}
+
   '@acamarata/tsconfig@0.1.0': {}
 
   '@bcoe/v8-coverage@1.0.2': {}

src/index.ts

@@ -104,3 +104,12 @@ export function isValidHijriDate(
 export function daysInHijriMonth(hy: number, hm: number, options?: ConversionOptions): number {
   return getCalendar(options?.calendar ?? "uaq").daysInMonth(hy, hm);
 }
+
+// ── 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: "hijri-core", version: "1.0.4" }))
+  .catch(() => {
+    // telemetry not installed or disabled — that's fine
+  });