Nix Configuration

A comprehensive Nix flake-based configuration for managing multiple systems, including NixOS and macOS (via nix-darwin).

Overview

This repository contains a centralized configuration for:

• NixOS systems (desktop, laptop, servers, VM)
• macOS systems (via nix-darwin)
• Home Manager configurations for all systems

Systems

NixOS Systems

• xnix: AMD desktop with NVIDIA GPU
• nixpad: Lenovo ThinkPad T480s
• hetznix: Hetzner cloud server (aarch64)
• vm: VM configuration (aarch64)

Darwin (macOS) Systems

• fom-mbp: MacBook Pro (Apple Silicon)

Home Manager Configurations

• User environments for all above systems

Directory Structure

.
├── bin/                # Helper scripts
├── modules/            # Shared configuration modules
│   ├── nix-settings/   # Common Nix settings
│   ├── system-darwin/  # macOS-specific modules
│   ├── system-nixos/   # NixOS-specific modules
│   └── user/           # User configurations
├── system/             # System-specific configurations
└── flake.nix          # Main entry point

Usage

Setup a New System

# Clone repository
git clone https://github.com/x123/dotfiles.git
cd dotfiles

# Apply system configuration (NixOS or Darwin)
./bin/apply-system $(hostname -s)

# Apply user configuration
./bin/apply-user

Update System

# Update flake inputs
./bin/update-nix

# Apply changes
./bin/apply-system $(hostname -s)
./bin/apply-user

Remote Deployment

# Deploy to a remote system
./bin/apply-remote-ssh user@host hostname

Helper Scripts

Script	Description
apply-system	Apply NixOS or nix-darwin configuration
apply-user	Apply home-manager configuration
apply-remote-ssh	Deploy to remote system via SSH
update-nix	Update flake inputs
clean-nix	Garbage collection and store optimization
format	Format code with alejandra
lint	Run linters (deadnix, statix, shellcheck)
build-vm	Build VM for testing
store-repair	Verify and repair Nix store
macos-post-update	Post-update tasks for macOS

Features

• Multi-system management with Nix flakes
• Secret management with sops-nix
• Development environments via nix develop
• Automated formatting and linting via pre-commit hooks
• Disk management with disko
• Hardware-specific configurations via nixos-hardware

Development

A development shell is provided with necessary tools:

nix develop

This gives you access to:

• alejandra (formatter)
• deadnix (detects unused variables)
• statix (linter)
• sops (secrets management)
• shellcheck (shell script linter)
• and more

Other Notes

Remote install via nixos-anywhere:

nix run github:nix-community/nixos-anywhere -- --flake .#mininix --target-host root@10.10.10.2