Docker

1. compose-backup: back up, encrypt and version Docker stacks

   How a small tool of my own packs every Docker stack ready to move, ships it encrypted to S3, and turns a plain mirror into 30 days of history.

2. Running NetBird yourself: the matchmaker that steps aside

   A small server at Hetzner introduces all my devices to each other and then stays out of the way: what runs on it, how I upgrade it without risk, and which traps cost me hours.