diff --git a/package-lock.json b/package-lock.json
index e86c024..25b90f2 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,15 +1,18 @@
 {
   "name": "taibun",
-  "version": "0.0.1",
+  "version": "1.0.0",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "taibun",
-      "version": "0.0.1",
+      "version": "1.0.0",
       "license": "MIT",
       "devDependencies": {
         "jest": "^29.7.0"
+      },
+      "engines": {
+        "node": ">=18"
       }
     },
     "node_modules/@ampproject/remapping": {
@@ -1694,20 +1697,6 @@
       "integrity": "sha512-OO0pH2lK6a0hZnAdau5ItzHPI6pUlvI7jMVnxUQRtw4owF2wk8lOSabtGDCTP4Ggrg2MbGnWO9X8K1t4+fGMDw==",
       "dev": true
     },
-    "node_modules/fsevents": {
-      "version": "2.3.3",
-      "resolved": "https://registry.npmjs.org/fsevents/-/fsevents-2.3.3.tgz",
-      "integrity": "sha512-5xoDfX+fL7faATnagmWPpbFtwh/R77WmMMqqHGS65C3vvB0YHrgF+B1YmZ3441tMj5n63k0212XNoJwzlhffQw==",
-      "dev": true,
-      "hasInstallScript": true,
-      "optional": true,
-      "os": [
-        "darwin"
-      ],
-      "engines": {
-        "node": "^8.16.0 || ^10.6.0 || >=11.0.0"
-      }
-    },
     "node_modules/function-bind": {
       "version": "1.1.2",
       "resolved": "https://registry.npmjs.org/function-bind/-/function-bind-1.1.2.tgz",
diff --git a/package.json b/package.json
index b2ab00a..b713197 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "taibun",
-  "version": "0.0.1",
+  "version": "1.0.0",
   "description": "Taiwanese Hokkien Transliterator and Tokeniser",
   "main": "taibun/index.js",
   "scripts": {
@@ -10,8 +10,21 @@
     "type": "git",
     "url": "git+https://github.com/andreihar/taibun.js.git"
   },
+  "files": [
+    "taibun/**/*",
+    "LICENSE",
+    "README.md"
+  ],
   "keywords": [
-    "hokkien"
+    "taiwan",
+    "taiwanese",
+    "taigi",
+    "hokkien",
+    "romanization",
+    "transliteration",
+    "transliterator",
+    "tokenization",
+    "tokenizer"
   ],
   "author": "Andrei Harbachov",
   "license": "MIT",
diff --git a/taibun/index.js b/taibun/index.js
index 51d3026..469ab39 100644
--- a/taibun/index.js
+++ b/taibun/index.js
@@ -1,8 +1,17 @@
-const fs = require('fs');
-const path = require('path');
+let wordDict, tradDict;
+
+if (typeof window === 'undefined') {
+	// Node js
+	const fs = require('fs');
+	const path = require('path');
+	wordDict = JSON.parse(fs.readFileSync(path.join(__dirname, 'data/words.json'), 'utf8'));
+	tradDict = JSON.parse(fs.readFileSync(path.join(__dirname, 'data/simplified.json'), 'utf8'));
+} else {
+	// Browser
+	wordDict = require('./data/words.json');
+	tradDict = require('./data/simplified.json');
+}
 
-const wordDict = JSON.parse(fs.readFileSync(path.join(__dirname, 'data/words.json'), 'utf8'));
-const tradDict = JSON.parse(fs.readFileSync(path.join(__dirname, 'data/simplified.json'), 'utf8'));
 const simplifiedDict = Object.entries(tradDict).reduce((acc, [k, v]) => ({ ...acc, [v]: k }), { '臺': '台' });
 
 // Helper to check if the character is a Chinese character
@@ -66,6 +75,9 @@ class Converter {
 
 	// Convert tokenised text into specified transliteration system
 	get(input) {
+		if (!input.trim()) {
+			return "";
+		}
 		let converted = new (require('./index.js').Tokeniser)().tokenise(toTraditional(input));
 		converted = this.toneSandhiPosition(converted).map(i => this.convertTokenised(i).trim()).join(' ').trim();
 		if (this.punctuation === 'format') {