Like recent chrom[e,ium], Electron >= 12 applications need libxshmfence.
vscode is preparing to switch to electron 12.0.0 (https://github.com/microsoft/vscode/tree/electron-12.x.y).
This introduces libxshmfence to the buildInputs of generic.nix, allowing
custom builds to reuse the same generic Nix. We'll also need this code
as soon as a release with Electron 12.x is out.
The option "--skip-getting-started" no longer exists in vscode and causes files in "$@" to not be opened.
Message from stdout: "Warning: 'skip-getting-started' is not in the list of known options, but still passed to Electron/Chromium."
"--skip-getting-started" being removed: 6a8b201c8a