> ## Documentation Index
> Fetch the complete documentation index at: https://docs.moss.dev/llms.txt
> Use this file to discover all available pages before exploring further.
# Electron App Local Search
> Run a Moss index in the Electron main process and query it from the renderer over IPC.
The Electron main process owns the Moss client and the index; the renderer calls it over
IPC to run queries. The index is queried in-process, so search is a local function call
rather than a network request and works offline. The index persists to the user data
directory and syncs in the background when a connection is available.
## Architecture
* Main process owns a Moss client
* Renderer calls main via IPC for index/query
* Index persisted to the user data directory
## Example (main process)
```ts theme={null}
// main.ts
import { app, ipcMain } from 'electron'
import { MossClient } from '@moss-dev/moss'
let client: MossClient
const INDEX = 'electron-docs'
app.whenReady().then(async () => {
client = new MossClient(process.env.MOSS_PROJECT_ID!, process.env.MOSS_PROJECT_KEY!)
await client.createIndex(INDEX, initialDocs, { modelId: 'moss-minilm' })
})
ipcMain.handle('search', async (_e, q: string) => {
await client.loadIndex(INDEX)
return client.query(INDEX, q, { topK: 5 })
})
```
## Related
The retrieval pipeline in depth.
Embed on-device for privacy.
