basic functionality, untested.

build.js

@@ -0,0 +1,26 @@
+#!/usr/bin/env node
+
+const esbuild = require('esbuild')
+const alias = require('esbuild-plugin-alias')
+
+esbuild.build({
+  bundle: true,
+  entryPoints: ['./extension/options.js'],
+  outfile: './extension/options.build.js',
+  plugins: [
+    alias({
+      stream: require.resolve('readable-stream')
+    })
+  ]
+})
+
+esbuild.build({
+  bundle: true,
+  entryPoints: ['./extension/background.js'],
+  outfile: './extension/background.build.js',
+  plugins: [
+    alias({
+      stream: require.resolve('readable-stream')
+    })
+  ]
+})