You were correct. Electron lets you expose specific NodeJS APIs via the preload script or everything via the ‘nodeIntegration’ setting: https://www.electronjs.

You were correct. Electron lets you expose specific NodeJS APIs via the preload script or everything via the ‘nodeIntegration’ setting: https://www.electronjs.org/docs/latest/api/structures/web-preferences https://www.electronjs.org/docs/latest/api/structures/web-pr... Separately the IPC lets you do zero copy in some circumstances via Transferable objects such as ArrayBuffers. Structured cloning is efficient but not zero copy, and json serialisation shouldn’t be used (since structured cloning is easily available).