diff --git a/modules/core/src/adapter/device.ts b/modules/core/src/adapter/device.ts
index f54b764f9..f009d871c 100644
--- a/modules/core/src/adapter/device.ts
+++ b/modules/core/src/adapter/device.ts
@@ -2,7 +2,6 @@
 // SPDX-License-Identifier: MIT
 // Copyright (c) vis.gl contributors
 
-import {VERSION} from '../init';
 import {StatsManager, lumaStats} from '../utils/stats-manager';
 import {log} from '../utils/log';
 import {uid} from '../utils/uid';
@@ -294,8 +293,6 @@ export abstract class Device {
     return 'Device';
   }
 
-  static VERSION = VERSION;
-
   constructor(props: DeviceProps) {
     this.props = {...Device.defaultProps, ...props};
     this.id = this.props.id || uid(this[Symbol.toStringTag].toLowerCase());
diff --git a/modules/core/src/adapter/luma.ts b/modules/core/src/adapter/luma.ts
index b48ce66a5..6a92cbcea 100644
--- a/modules/core/src/adapter/luma.ts
+++ b/modules/core/src/adapter/luma.ts
@@ -9,6 +9,13 @@ import {StatsManager} from '../utils/stats-manager';
 import {lumaStats} from '../utils/stats-manager';
 import {log} from '../utils/log';
 
+declare global {
+  // eslint-disable-next-line no-var
+  var luma: Luma;
+}
+
+const STARTUP_MESSAGE = 'set luma.log.level=1 (or higher) to trace rendering';
+
 const ERROR_MESSAGE =
   'No matching device found. Ensure `@luma.gl/webgl` and/or `@luma.gl/webgpu` modules are imported.';
 
@@ -43,11 +50,39 @@ export class Luma {
   /** Global stats for all devices */
   readonly stats: StatsManager = lumaStats;
 
-  /** Global log */
+  /**
+   * Global log
+   *
+   * Assign luma.log.level in console to control logging: \
+   * 0: none, 1: minimal, 2: verbose, 3: attribute/uniforms, 4: gl logs
+   * luma.log.break[], set to gl funcs, luma.log.profile[] set to model names`;
+   */
   readonly log: Log = log;
 
+  /** Version of luma.gl */
+  readonly VERSION: string =
+    // Version detection using build plugin
+    // @ts-expect-error no-undef
+    typeof __VERSION__ !== 'undefined' ? __VERSION__ : 'running from source';
+
   protected deviceMap = new Map<string, DeviceFactory>();
 
+  constructor() {
+    if (globalThis.luma) {
+      if (globalThis.luma.VERSION !== this.VERSION) {
+        log.error(`Found luma.gl ${globalThis.luma.VERSION} while initialzing ${this.VERSION}`)();
+        log.error(`'yarn why @luma.gl/core' can help identify the source of the conflict`)();
+        throw new Error(`luma.gl - multiple versions detected: see console log`);
+      }
+
+      log.error('This version of luma.gl has already been initialized')();
+    }
+
+    log.log(1, `${this.VERSION} - ${STARTUP_MESSAGE}`)();
+
+    globalThis.luma = this;
+  }
+
   registerDevices(deviceClasses: DeviceFactory[]): void {
     for (const deviceClass of deviceClasses) {
       this.deviceMap.set(deviceClass.type, deviceClass);
diff --git a/modules/core/src/index.ts b/modules/core/src/index.ts
index 94edd113a..64506b1a5 100644
--- a/modules/core/src/index.ts
+++ b/modules/core/src/index.ts
@@ -2,8 +2,6 @@
 // SPDX-License-Identifier: MIT
 // Copyright (c) vis.gl contributors
 
-export {VERSION} from './init';
-
 // MAIN API ACCESS POINT
 export {luma} from './adapter/luma';
 
diff --git a/modules/core/src/init.ts b/modules/core/src/init.ts
deleted file mode 100644
index 15194488f..000000000
--- a/modules/core/src/init.ts
+++ /dev/null
@@ -1,53 +0,0 @@
-// luma.gl
-// SPDX-License-Identifier: MIT
-// Copyright (c) vis.gl contributors
-
-import {isBrowser} from '@probe.gl/env';
-import {log} from './utils/log';
-import {lumaStats} from './utils/stats-manager';
-
-declare global {
-  // eslint-disable-next-line no-var
-  var luma: any;
-}
-
-/**
- * By adding the result of init() to Device.VERSION we guarantee it will be called
- * @returns version
- */
-function initializeLuma(): string {
-  // Version detection using babel plugin
-  // @ts-expect-error
-  const VERSION = typeof __VERSION__ !== 'undefined' ? __VERSION__ : 'running from source';
-
-  const STARTUP_MESSAGE = 'set luma.log.level=1 (or higher) to trace rendering';
-  // Assign luma.log.level in console to control logging: \
-  // 0: none, 1: minimal, 2: verbose, 3: attribute/uniforms, 4: gl logs
-  // luma.log.break[], set to gl funcs, luma.log.profile[] set to model names`;
-
-  if (globalThis.luma && globalThis.luma.VERSION !== VERSION) {
-    throw new Error(
-      `luma.gl - multiple VERSIONs detected: ${globalThis.luma.VERSION} vs ${VERSION}`
-    );
-  }
-
-  if (!globalThis.luma) {
-    if (isBrowser()) {
-      log.log(1, `${VERSION} - ${STARTUP_MESSAGE}`)();
-    }
-
-    globalThis.luma = globalThis.luma || {
-      VERSION,
-      version: VERSION,
-      log,
-
-      // A global stats object that various components can add information to
-      // E.g. see webgl/resource.js
-      stats: lumaStats
-    };
-  }
-
-  return VERSION;
-}
-
-export const VERSION = initializeLuma();
diff --git a/modules/webgl/src/context/debug/spector.ts b/modules/webgl/src/context/debug/spector.ts
index 95f3282d8..a394feb7a 100644
--- a/modules/webgl/src/context/debug/spector.ts
+++ b/modules/webgl/src/context/debug/spector.ts
@@ -52,7 +52,7 @@ export function initializeSpectorJS(props?: SpectorProps) {
     log.probe(LOG_LEVEL, 'SPECTOR found and initialized')();
     spector = new globalThis.SPECTOR.Spector();
     if (globalThis.luma) {
-      globalThis.luma.spector = spector;
+      (globalThis.luma as any).spector = spector;
     }
   }