A startup called L2 drive is apparently working on this: https://l2drive.com/vacuum-hdds-the-next-logical-step-after-helium/ https://l2drive.com/vacuum-hdds-the

A startup called L2 drive is apparently working on this: https://l2drive.com/vacuum-hdds-the-next-logical-step-after-helium/ https://l2drive.com/vacuum-hdds-the-next-logical-step-after-... But their website looks pretty stale, and I don’t see evidence of traction from brief Googling.