diff --git a/index.mjs b/index.mjs
index 28eea7f..caac7a1 100644
--- a/index.mjs
+++ b/index.mjs
@@ -3,7 +3,11 @@
 import {readFileSync} from 'node:fs';
 import {resolve, basename, extname, dirname, relative, join} from 'node:path';
 
-export function createConfig (manifestPathRelative, options, createConfig) {
+export function createConfig ({
+	manifest: manifestPathRelative,
+	scriptPlugins = [],
+	sourcemap,
+}) {
 	const manifestPath = resolve(process.cwd(), manifestPathRelative);
 	const manifestDirname = dirname(manifestPath);
 
@@ -109,15 +113,13 @@ export function createConfig (manifestPathRelative, options, createConfig) {
 	const platform = 'firefox';
 	return [
 		...scripts.map(entrypointPath => ({
-			// Get configuration options for this entrypoint from the caller
-			...createConfig(),
-			// Overwrite input and output options
 			input: relative(process.cwd(), entrypointPath),
 			output: {
 				file: getOutputPathRelative('build', platform, entrypointPath, 'js'),
 				format: 'iife',
-				sourcemap: options.sourcemap,
+				sourcemap,
 			},
+			plugins: scriptPlugins,
 		})),
 
 		// A special step that processes the manifest and copies over non-JS