How to use pinia in electron main process

[bayun2]

I want to write a plugin like https://www.npmjs.com/package/@kasvith/electron-vuex
But I have two problem.

1. Pinia has't mutation, so I can't notify renderer process to modify the specified state when main process state change like https://github.com/vue-electron/vuex-electron/blob/master/src/shared-mutations.js#L91.
2. In main process,if I do like below it will warning, beacause there is no window

const pinia = createPinia()
const app = createApp({})
app.use(pinia)