"portable" Thorium Desktop Reader: ZIP bundle + co-located "app data" folder(s)

[danielweck]

app.setPath()
https://www.electronjs.org/docs/latest/api/app#appsetpathname-path

Overrides the path to a special directory or file associated with name. If the path specifies a directory that does not exist, an Error is thrown. In that case, the directory should be created with fs.mkdirSync or similar. You can only override paths of a name defined in app.getPath. By default, web pages' cookies and caches will be stored under the sessionData directory. If you want to change this location, you have to override the sessionData path before the ready event of the app module is emitted.

Example implementation:
sliceofbytes/thorium-reader@ed0232e...develop/