electron-bytenode-example VS bytenode

Have a look at bytenode.

Take a look at the electron-bytenode-example repository - in particular the preload script. You can see the 'DOMContentLoaded' example there. You need to do that because preload runs before the DOM has been loaded. That example has both nodeIntegration: true and contextIsolation: false. However, the preload script should always have access to both Node and the DOM, so you should be able to set it up so that all of your scripting happens in preload.

electron-vite inspired by bytenode, the specific implementation:

take a look into this one, https://github.com/bytenode/bytenode

did you try https://github.com/bytenode/bytenode? take a look, it seems it does what you need

The title is a bit misleading; the post is about jsc files containing nodejs "bytecode" produced by bytenode.

It doesn't appear that there is any performance penalty to using Bytenode. There are some benchmark functions in the repository, but certainly more work could be done to test. My gut feeling is that the minor overhead of loading the binary is balanced out by the minor speed increase by giving V8 a pre-compiled file.