build for commonjs, esm and a standalone bundle.

package.json

@@ -6,7 +6,8 @@
     "type": "git",
     "url": "https://github.com/fiatjaf/nostr-tools.git"
   },
-  "type": "module",
+  "main": "cjs/index.js",
+  "module": "esm/index.js",
   "dependencies": {
     "@noble/hashes": "^0.5.7",
     "@noble/secp256k1": "^1.5.2",
@@ -25,11 +26,10 @@
     "nostr"
   ],
   "devDependencies": {
-    "@esbuild-plugins/node-globals-polyfill": "^0.1.1",
     "@types/node": "^18.0.3",
     "@typescript-eslint/eslint-plugin": "^5.46.1",
     "@typescript-eslint/parser": "^5.46.1",
-    "esbuild": "^0.14.38",
+    "esbuild": "0.16.9",
     "esbuild-plugin-alias": "^0.2.1",
     "eslint": "^8.30.0",
     "eslint-plugin-babel": "^5.3.1",
@@ -39,7 +39,7 @@
     "typescript": "^4.9.4"
   },
   "scripts": {
-    "prepublish": "node build.cjs",
-    "check-ts": "tsd && node --no-warnings --loader=esm-loader-typescript index.test-d.ts"
+    "build": "node build.cjs",
+    "prepublish": "yarn run build"
   }
 }