The flag itself is documented as supported: https://www.electronjs.org/docs/latest/api/command-line-switches I was just passing it incorrectly (hopefully).
Desktop app for Ente Photos
The sweetness of Ente Photos, right on your computer. Linux, Windows and macOS.
You can download a pre-built binary from releases.
To know more about Ente, see our main README or visit ente.io.
Building from source
Fetch submodules
git submodule update --init --recursive
Install dependencies
yarn install
Run in development mode (supports hot reload for the renderer process)
yarn dev
Or create a binary for your platform
yarn build
That's the gist of it. For more development related documentation, see docs.