diff --git a/build.ts b/build.ts
index 77598d2..0442750 100644
--- a/build.ts
+++ b/build.ts
@@ -1,5 +1,12 @@
 #!/usr/bin/env bun
-import { watch, readFile } from "node:fs/promises"
+import { watch, readFile } from "node:fs/promises";
+
+enum BuildTarget {
+	ALL = 'all',
+	ANDROID_APP = 'android-app',
+	MOBILE = 'mobile',
+	WEBOS = 'webos',
+}
 
 const postProcess = (str: string): string => {
     // Unescape unicode charaters
@@ -13,34 +20,45 @@ const postProcess = (str: string): string => {
     return str;
 }
 
-const build = (config?: any={}) => {
+const build = async (target: BuildTarget, config?: any={}) => {
+	console.log('--- Building:', target);
 	const startTime = performance.now();
 
-	return Bun.build({
+	let outputFileName = 'better-xcloud';
+	if (target !== BuildTarget.ALL) {
+		outputFileName += `.${target}`;
+	}
+	outputFileName += '.user.js';
+
+	let output = await Bun.build({
 		entrypoints: ['src/index.ts'],
 		outdir: './dist',
-	}).then(async (output) => {
-		if (!output.success) {
-			console.log(output);
-			process.exit(1);
-		}
-		const {path} = output.outputs[0];
-		let result = postProcess(await readFile(path, 'utf-8'));
-		await Bun.write(
-			path,
-			await readFile('src/header.txt', 'utf-8') + result
-		);
-		console.log(`done in ${performance.now() - startTime} ms`);
-	})
+		naming: outputFileName,
+		define: {
+			'Bun.env.BUILD_TARGET': JSON.stringify(target),
+		},
+	});
+
+	if (!output.success) {
+		console.log(output);
+		process.exit(1);
+	}
+
+	const {path} = output.outputs[0];
+	let result = postProcess(await readFile(path, 'utf-8'));
+	const header = await readFile('src/header.txt', 'utf-8');
+	await Bun.write(path, header + result);
+	console.log(`[${target}] done in ${performance.now() - startTime} ms`);
 }
 
+const buildTargets = [
+	BuildTarget.ALL,
+	BuildTarget.ANDROID_APP,
+	BuildTarget.MOBILE,
+	// BuildTarget.WEBOS,
+];
+
 const config = {};
-await build(config);
-
-if (!process.argv.includes('--watch')) process.exit(0);
-
-for await (const event of watch('./src', {recursive: true})) {
-	const {filename} = event;
-	console.log(filename)
-	await build(config);
+for (const target of buildTargets) {
+	await build(target, config);
 }
diff --git a/package.json b/package.json
index de4a4fe..de00ba3 100644
--- a/package.json
+++ b/package.json
@@ -3,8 +3,7 @@
   "module": "src/index.ts",
   "type": "module",
   "bin": {
-    "build": "build.ts",
-    "build-watch": "build.ts --watch"
+    "build": "build.ts"
   },
   "devDependencies": {
     "@types/bun": "latest"
diff --git a/src/build-config.ts b/src/build-config.ts
new file mode 100644
index 0000000..07842d1
--- /dev/null
+++ b/src/build-config.ts
@@ -0,0 +1,8 @@
+const BuildConfig = {
+    TARGET: Bun.env.BUILD_TARGET,
+};
+
+export const getBuildConfig = () => {
+    console.log(BuildConfig);
+    return BuildConfig;
+};
diff --git a/src/index.ts b/src/index.ts
index 69825e5..da4d359 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -1,3 +1,4 @@
+import { getBuildConfig } from "./build-config" with { type: "macro" };
 import "./utils/global";
 import { BxEvent } from "./modules/bx-event";
 import { BX_FLAGS } from "./modules/bx-flags";