Can't use cache to bypass downloading electron

[AlirezaBKHN]

Even after putting the cache inside the user AppData i still get this error.
also my agent is not connected to the internet and i need to verify the checksum offline.
both zip and checksum are placed together.

> Packaging for x64 on win32
> Copying files
> Preparing native dependencies
> Finalizing package
2025-05-11T11:47:50.052Z @electron/get:index Checking the cache (undefined) for electron-v36.0.0-win32-x64.zip (https://github.com/electron/electron/releases/download/v36.0.0/electron-v36.0.0-win32-x64.zip)
2025-05-11T11:47:50.055Z @electron/get:index Cache hit
2025-05-11T11:47:50.057Z @electron/get:index Downloading https://github.com/electron/electron/releases/download/v36.0.0/SHASUMS256.txt to C:\Users\TESTAU~1\AppData\Local\Temp\1\electron-download-rT2lFT\SHASUMS256.txt with options: undefined

electron: v36.0.0
electron-forge: v7.8.1
I don't have any idea of how to use forge.packagerConfig, it doesn't seem to have any property for cache root.

The problem is this...

The electron-packager exposes a packager default export. This is used by electron-forge in the packages/api/core/src/api/package.ts.

Specifically where it calls const outputPaths = await packager(packageOpts);. Through several series of magic, it will eventually call the downloadArtifact function in @electron/get.

At no point is the cacheRoot ever acquired from an environment variable.

The packageOpts defined in packages/api/core/src/api/package.ts has no mention about download options that would specify the cacheRoot.

So currently there is no way to set the cacheRoot via an enviroment variable in the latest electron-forge.

EXCEPT....

through the forge.packagerConfig.

Originally posted by @CMCDragonkai in #160