Still trying to get cra to play nice with theatre

packages/dataverse/devEnv/build.ts

@@ -1,6 +1,24 @@
-import path from 'path'
+import * as path from 'path'
 import {build} from 'esbuild'
+import type {Plugin} from 'esbuild'
 
+const externalPlugin = (patterns: RegExp[]): Plugin => {
+  return {
+    name: `external`,
+
+    setup(build) {
+      build.onResolve({filter: /.*/}, (args) => {
+        const external = patterns.some((p) => {
+          return p.test(args.path)
+        })
+
+        if (external) {
+          return {path: args.path, external}
+        }
+      })
+    },
+  }
+}
 const definedGlobals = {
   global: 'window',
 }
@@ -17,19 +35,20 @@ function createBundles(watch: boolean) {
     mainFields: ['browser', 'module', 'main'],
     target: ['firefox57', 'chrome58'],
     conditions: ['browser', 'node'],
+    plugins: [externalPlugin([/^[\@a-zA-Z]+/])],
   }
 
   build({
     ...esbuildConfig,
-    outfile: path.join(pathToPackage, 'dist/index.cjs'),
+    outfile: path.join(pathToPackage, 'dist/index.js'),
     format: 'cjs',
   })
 
-  build({
-    ...esbuildConfig,
-    outfile: path.join(pathToPackage, 'dist/index.mjs'),
-    format: 'esm',
-  })
+  // build({
+  //   ...esbuildConfig,
+  //   outfile: path.join(pathToPackage, 'dist/index.mjs'),
+  //   format: 'esm',
+  // })
 }
 
 createBundles(false)