Currently, the M1 Native version of Volta fetches the x64 version of Node, which then runs through Rosetta 2. Once Node begins to ship prebuilt M1 Native binaries, we should fetch those where possible. If there isn't a native build available, we should still fall back to fetching the x64 Node.
Currently blocked as Node is not yet publishing M1 Native builds and we don't yet know what the files identifier will be in https://nodejs.org/dist/index.json