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nix-flake/README.md
Zephrynis b0dacb2bcf Add initial Nix flake configuration for PC and Laptop with Home Manager support 
- Create flake.nix to define NixOS configurations for PC and Laptop
- Add README.md with setup instructions and layout overview
- Implement common NixOS settings in modules/common.nix
- Configure Home Manager for user-specific settings in home/users/user/home.nix
- Set up hardware configurations for both PC and Laptop
- Enable Home Manager integration in host configurations
- Introduce Zen Browser package definition
2025-10-05 03:17:28 +01:00

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Nix flake for PC and Laptop

This flake provides two NixOS hosts (pc and laptop) with shared modules and Home Manager.

Layout

  • flake.nix — Flake inputs/outputs, two nixosConfigurations (pc, laptop)
  • modules/common.nix — Common NixOS settings for both hosts
  • hosts/pc — PC host config + its hardware-configuration.nix
  • hosts/laptop — Laptop host config + its hardware-configuration.nix
  • home/users/user/home.nix — Home Manager configuration for the user

Quick start

  1. Update variables:
  • In flake.nix, set user = "<your-username>".
  • Rename home/users/user/ to home/users/<your-username>/ and edit home.nix accordingly.
  • In each host's configuration.nix, the Home Manager import uses ${user} so it will follow automatically once the flake variable is set.
  • Set networking.hostName per host if you want different names.
  1. Generate real hardware configs on each device:

On each machine, clone this repo and inside that host folder run:

sudo nixos-generate-config --show-hardware-config > hosts/<host>/hardware-configuration.nix

Replace the placeholder UUIDs and modules in the template with the generated content.

  1. Switch configuration on the machine:

From the repo root on the machine you are configuring:

sudo nixos-rebuild switch --flake .#pc
# or
sudo nixos-rebuild switch --flake .#laptop

If building from another machine for a remote target, add --target-host and optionally --use-remote-sudo.

  1. Home Manager only (optional):

Home Manager is integrated as a NixOS module. If you want to apply only HM changes after login:

home-manager switch --flake .#<username>@<host>
  1. Format the repo (optional):
nix fmt

Notes

  • This flake targets x86_64-linux only. If you need ARM support, you'll need to add an aarch64 system and review the inputs.
  • Update system.stateVersion and home.stateVersion only when you deliberately accept new defaults.
  • To pin a newer NixOS release, change inputs nixpkgs and home-manager to the latest stable branch and review release notes.