Variables

Common variables and configuration used across my NixOS and nix-darwin configurations.

Current Structure

vars/
├── README.md
├── default.nix         # Main variables entry point
└── networking.nix      # Network configuration and host definitions

Components

1. `default.nix`

Contains user information, SSH keys, and password configuration:

User credentials (username, full name, email)
Initial hashed password for new installations
SSH authorized keys (main and backup sets)
Public key references for system access

2. `networking.nix`

Comprehensive network configuration including:

Gateway settings: Main router and proxy gateway configurations
DNS servers: IPv4 and IPv6 name servers
Host inventory: Complete mapping of all hosts with their network interfaces and IP addresses
SSH configuration: Remote builder aliases and known hosts configuration
Network topology: Physical machines, VMs, Kubernetes clusters, and SBCs

Host Categories

The networking configuration covers:

Physical machines: Desktop PCs, Apple Silicon systems, SBCs
Virtual machines: KubeVirt guests, K3s nodes
Kubernetes clusters: Production and testing environments
Network infrastructure: Routers, gateways, and DNS configuration

Usage

These variables are imported and used throughout the configuration to ensure consistency across all hosts and maintain centralized network and security settings.

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