Introduction

NXD is a pre-release infrastructure reconciler for Nix-authored desired state. It evaluates consumer-owned Nix modules into canonical JSON, plans changes, applies persisted plans, and verifies results through typed providers.

Current verified gates include:

• standalone extraction;
• core canonical contracts and fixture reconciliation;
• built-in PVE BackupJob reconciliation;
• a synthetic external-provider protocol trial.

Production use is not generally supported yet. Follow the compatibility matrix and feature evidence before relying on any behavior.