Also, did you know that the COAR Notify Protocol allows submitting preprints directly to PCI from HAL or Digital.CSIC? The process is explained here: https://peercommunityin.org/2024/01/15/submission-from-hal/ and here: https://peercommunityin.org/2024/09/18/direct-submission-from-digital-csic-to-pci-via-coar-notify/