Nix Setup

My personal Nix flake dual setup for NixOS and Asahi/Fedora with standalone home-manager.

Note: This uses Colemak-DH-ISO keyboard layout by default. Edit keyboard.nix and niri.kdl before installing.

Important

Uses ~/dev/nix path (install script default).

Table of Contents

• Description
• Install
• Project Structure
• Useful Commands
  • Rebuild
  • Update
  • Diff

Description

• Compositor and tools: Niri, Fuzzel, Waybar, Mako, Hyprlock, Hypridle
• Main programs: Kitty, Fish, Neovim
• Theming: stylix

Install

NixOS: Clones repo to ~/dev/nix, then applies NixOS configuration.

Fedora/Asahi: Clones repo, applies system settings, installs system deps with dnf (niri, keyd, pipewire), installs Nix, and applies home-manager configuration.

curl -fsSL jaycem.dev/nix | bash

Project Structure

This flake provides a unified configuration system that works on both NixOS and non-NixOS systems.

• NixOS: Full system rebuild with integrated home-manager
• Standalone: Home-manager only for any Linux distribution

Directory	Description
profiles/	System entry points - defines complete NixOS and Home Manager configurations
modules/nixos/	NixOS system-level modules (boot, network, services, users, etc.)
modules/home/	Home Manager user-level modules (programs, dotfiles, window managers, etc.)
modules/home/scripts/	Standalone utility scripts packaged as derivations
modules/hosts/	Host-specific hardware and system config (hardware-config.nix, mounts, etc.)

Useful Commands

Rebuild

• NixOS:

sudo nixos-rebuild switch --flake ~/dev/nix#nixos

• Asahi/Fedora:

home-manager switch -b backup --flake ~/dev/nix#asahi

Update

nix flake update

Then run the rebuild command for NixOS or Home Manager, depending on which configuration you are using.

Diff

Useful for checking what changes will be made before switching configurations.

• NixOS:

sudo nixos-rebuild dry-activate --flake ~/dev/nix#nixos

• Asahi/Fedora:

home-manager switch -b backup --dry-run --flake ~/dev/nix#asahi