Michael Harley details his 2026 backup strategy based on the 3-2-1 principle: maintaining three copies of important files across two different media types, with one copy stored offsite. He uses Borg with Borgmatic for encrypted, deduplicated, versioned backups from his Debian laptop to both a local Synology NAS and offsite BorgBase storage, scheduled via systemd timers and monitored with Uptime Kuma to ensure reliability. This approach balances efficiency, security, and recoverability while highlighting practical considerations like retention policies and passphrase management.
https://michaelharley.net/posts/2026/08/11/my-backup-strategy-2026/