ODROID-H4+ kit review - Part 1: Unboxing, H4 Type 3 case assembly, and first boot ( www.cnx-software.com )
ZFS High Availability with Asynchronous Replication and zrep ( klarasystems.com )
Describes the zrep script that uses zfs send and receive over network to keep a read-only copy of snapshots up-to-date.
Meshtastic ( meshtastic.org )
An open source, off-grid, decentralized, mesh network built to run on affordable, low-power devices