Nebula-sync

Judgement

What it is

Developer tool

What it does

A small Go service that copies configuration from a primary Pi-hole v6 instance to replicas on a cron schedule, fully or selectively.

Adopt it when

You run two or more Pi-hole v6 servers for redundancy and want their settings kept identical.

Watch out

Unofficial and Pi-hole v6 only, and it stores admin passwords in its environment.

Ready for

Usable

Runs as

Command line and self-hosted server

Built with

Go and Docker

How established

Established: started 2 years ago, latest release v0.11.3.

What the license allows

You can build it into a product you sell, as long as you keep its copyright notice.

Judged on 2026-11-03 from the project's README and GitHub data. The license and age lines are worked out directly.

Built from

Follow it down: Nebula-sync → Go → runs on a microchip

How compilers were built, back to punched paper tape

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