via https://doc.dovecot.org/main/installation/upgrade/2.3-to-2.4.html
via https://linuxfr.org/users/bunam/liens/usb4stream-permet-une-liaison-directe-entre-deux-appareils-en-thunderbolt-ou-usb4-sous-linux
via https://www.reddit.com/r/freebsd/comments/1tkyinv/a_dualnode_home_nas_cluster_for_210/
via @breizh
via @bearstech
