diff --git a/packages/playground/devEnv/servePlayground.ts b/packages/playground/devEnv/servePlayground.ts
index 5c7f790..06fcaa4 100644
--- a/packages/playground/devEnv/servePlayground.ts
+++ b/packages/playground/devEnv/servePlayground.ts
@@ -1,13 +1,8 @@
 import path from 'path'
-import {
-  convertObjectToWebpackDefinePaths,
-  getEnvConfig,
-} from '../../../theatre/devEnv/webpack/createWebpackConfig'
+import {definedGlobals} from '../../../theatre/devEnv/buildUtils'
 
 const playgroundDir = path.join(__dirname, '..')
 
-const envConfig = getEnvConfig(true)
-
 const port = 8080
 
 require('esbuild')
@@ -24,13 +19,7 @@ require('esbuild')
       // watch: true,
       bundle: true,
       sourcemap: true,
-      define: {
-        global: 'window',
-        ...convertObjectToWebpackDefinePaths({
-          process: {env: envConfig},
-          $env: envConfig,
-        }),
-      },
+      define: definedGlobals,
     },
   )
   .then((server: unknown) => {
diff --git a/theatre/devEnv/build.ts b/theatre/devEnv/build.ts
index 2b8fd1f..da4fcea 100644
--- a/theatre/devEnv/build.ts
+++ b/theatre/devEnv/build.ts
@@ -1,4 +1,5 @@
 import path from 'path'
+import {definedGlobals} from './buildUtils'
 
 for (const which of ['core', 'studio']) {
   const pathToPackage = path.join(__dirname, '../', which)
@@ -9,12 +10,7 @@ for (const which of ['core', 'studio']) {
     outfile: path.join(pathToPackage, 'dist/index.js'),
     bundle: true,
     sourcemap: true,
-    define: {
-      global: 'window',
-      'process.env.version': JSON.stringify(
-        require('../studio/package.json').version,
-      ),
-    },
+    define: definedGlobals,
   }
   require('esbuild').build(esbuildConfig)
 }
diff --git a/theatre/devEnv/buildUtils.ts b/theatre/devEnv/buildUtils.ts
new file mode 100644
index 0000000..48d1038
--- /dev/null
+++ b/theatre/devEnv/buildUtils.ts
@@ -0,0 +1,6 @@
+export const definedGlobals = {
+  global: 'window',
+  'process.env.version': JSON.stringify(
+    require('../studio/package.json').version,
+  ),
+}
diff --git a/theatre/globals.d.ts b/theatre/globals.d.ts
index b8c4666..b22bea7 100644
--- a/theatre/globals.d.ts
+++ b/theatre/globals.d.ts
@@ -13,10 +13,6 @@ interface ProcessEnv {
   version: string
 }
 
-declare var process: {
-  env: ProcessEnv
-}
-
 declare module '*.svg' {
   var s: string
   export default s
diff --git a/theatre/package.json b/theatre/package.json
index e4bac28..8f06104 100644
--- a/theatre/package.json
+++ b/theatre/package.json
@@ -33,7 +33,7 @@
     "@types/jest": "^26.0.23",
     "@types/lodash": "^4.14.170",
     "@types/lodash-es": "^4.17.4",
-    "@types/node": "^15.6.2",
+    "@types/node": "^15.12.3",
     "@types/react": "^17.0.9",
     "@types/react-dom": "^17.0.6",
     "@types/react-icons": "^3.0.0",
diff --git a/theatre/tsconfig.json b/theatre/tsconfig.json
index 4603166..b8906ab 100644
--- a/theatre/tsconfig.json
+++ b/theatre/tsconfig.json
@@ -5,7 +5,7 @@
     "lib": ["es2017", "dom", "ESNext"],
     "rootDir": ".",
     "composite": true,
-    "types": ["jest"],
+    "types": ["jest", "node"],
     "plugins": [
       {
         "name": "typescript-styled-plugin",
diff --git a/yarn.lock b/yarn.lock
index 37f09ca..27dd446 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -4032,6 +4032,13 @@ __metadata:
   languageName: node
   linkType: hard
 
+"@types/node@npm:^15.12.3":
+  version: 15.12.3
+  resolution: "@types/node@npm:15.12.3"
+  checksum: 1e7a4f5675416f4dd61a7c16a8754272d0772bec070c1737e848598dad5c4a04fd3d249aab2b456c0f66fbbe8eb0e831ae5d2a4873385fee33ccd4935a53d300
+  languageName: node
+  linkType: hard
+
 "@types/node@npm:^15.6.2":
   version: 15.6.2
   resolution: "@types/node@npm:15.6.2"
@@ -17676,7 +17683,7 @@ resolve@1.17.0:
     "@types/jest": ^26.0.23
     "@types/lodash": ^4.14.170
     "@types/lodash-es": ^4.17.4
-    "@types/node": ^15.6.2
+    "@types/node": ^15.12.3
     "@types/react": ^17.0.9
     "@types/react-dom": ^17.0.6
     "@types/react-icons": ^3.0.0