NixOS Configuration Repository

A flake-based NixOS configuration repository that manages multiple systems using Nix flakes and Home Manager for reproducible, declarative system management.

Architecture Overview

This repository uses Nix flakes for reproducible system configurations and Home Manager for user-level configuration management. It's designed to manage multiple hosts while sharing common configurations and allowing host-specific customizations.

Managed Hosts

• server - Server configuration
• vivo - Vivo laptop configuration
• pc - Desktop PC configuration
• tuf - TUF laptop configuration
• `` - TUF laptop configuration
• media-server - Media server configuration (without Home Manager)

Directory Structure

├── flake.nix              # Main flake configuration and host definitions
├── home.nix               # Base Home Manager configuration
├── sys/                   # System-wide configurations
│   ├── default.nix        # Common system packages and settings
│   ├── gui.nix            # GUI-related configurations
│   ├── non-gui.nix        # Non-GUI configurations
│   ├── users.nix          # User management
│   ├── powerconf.nix      # Power management settings
│   └── ...                # Other system modules
├── home/                  # User-specific configurations
│   ├── default.nix        # Base Home Manager imports
│   ├── doom.nix           # Doom Emacs configuration
│   ├── hyprland/          # Hyprland window manager settings
│   └── files/             # Dotfiles and config files
│       └── doom/          # Doom Emacs customizations
└── hosts/                 # Host-specific configurations
    ├── {hostname}/
    │   ├── hardware-configuration.nix  # Hardware-specific settings
    │   ├── configuration.nix           # Host-specific system config
    │   └── home.nix                    # Host-specific user config
    └── ...

Key Components

System Configuration (sys/)

Modular system-wide settings including:

• GUI/Non-GUI configurations - Desktop environment and terminal setups
• User management - System user configuration
• Power management - Battery and power settings
• Development tools - Git, Neovim, Docker, and other dev tools
• Locale settings - Indonesian/English environment configuration

Home Configuration (home/)

User-specific dotfiles and application configurations:

• Doom Emacs - Custom Emacs configuration with themes and packages
• Hyprland - Window manager configuration and keybindings
• Terminal tools - Alacritty, bash, and other terminal configurations
• Application settings - GTK themes, Rofi, and other desktop app configs

Host-Specific Configurations (hosts/)

Each host maintains:

• Hardware configuration - Auto-generated hardware-specific settings
• System configuration - Host-specific system modules and services
• Home configuration - User-specific settings for that host

Usage

Rebuild Commands

Convenient aliases are defined in sys/default.nix:87-90:

nix-rebuild        # Rebuild current host configuration
nix-update         # Update channels and rebuild system
nix-cleanup        # Clean up old nix garbage

Manual Rebuild

For specific hosts or manual rebuilding:

# Rebuild current host
sudo nixos-rebuild switch --flake /home/gibi/.nix#$(hostname)

# Rebuild specific host
sudo nixos-rebuild switch --flake /home/gibi/.nix#hostname

# Build configuration without switching
sudo nixos-rebuild build --flake /home/gibi/.nix#hostname

# Test configuration (doesn't persist after reboot)
sudo nixos-rebuild test --flake /home/gibi/.nix#hostname

Features

• Declarative configuration - All system state defined in code
• Reproducible builds - Same configuration produces identical results
• Multi-host support - Single repository manages multiple machines
• Modular design - Shared modules reduce duplication
• Rollback capability - Easy to revert configuration changes
• Automatic updates - Flakes ensure reproducible package versions

Dependencies

The flake includes several external inputs:

• nixpkgs - Main Nix package repository (stable, unstable, and previous versions)
• home-manager - User environment management
• nix-doom-emacs-unstraightened - Doom Emacs configuration
• hyprland - Tiling window manager
• stylix - Theme management system
• nixarr - Media server configuration templates
• Various other utility flakes for specific functionality

Locale Configuration

Configured for Indonesian/English bilingual usage:

• System locale: en_US.UTF-8
• Regional formats: id_ID.UTF-8 for address, measurement, currency, etc.
• Timezone: Asia/Jakarta