NixOS dotfiles for multiple machines, built with the Den framework.

Den makes aspects the primary unit of composition. Shared behavior is defined once under den.default or den.aspects.*, then included by hosts and users as needed.

Host declarations live in modules/hosts/<hostname>/host.nix.

Build the installer ISO from this flake:

nix build .#installer

The ISO is written under ./result/iso/nixos-installer.iso.

Boot the target machine from the ISO, inspect disks with lsblk, then install with disko-install using the host configuration and target disk path:

disko-install --flake .#<host> --disk nixos /dev/disk-path

Replace <host> with pc, work, or laptop. Confirm the disk path and layout before editing or applying any disko.nix configuration.

• flake.nix: generated file. Do not edit directly.
• flake.lock: pinned input revisions.
• modules/flake/: flake-level configuration, including Den and flake-file setup.
• modules/hosts/: host-specific Den aspects, hardware facts, and disk layouts.
• modules/users/: user-specific aspects and identity configuration.
• modules/nix/: Nix, nixpkgs, Home Manager, state version, and maintenance settings.
• modules/system/: shared OS-level features.
• modules/dev/: development tools and shell/editor configuration.
• modules/programs/: common user applications.
• modules/games/: game-related aspects.

The repository has a .envrc using nix-direnv. Run this once after cloning or changing the dev shell:

direnv allow

Without direnv, enter the shell manually:

nix develop

Apply the current host configuration:

nh os switch .

Apply a specific host configuration:

nh os switch .#(pc|work|laptop)

Format Nix files:

nix fmt .

flake.nix is generated by flake-file. If you change flake-file.* settings in the modules, regenerate it with:

nix run .#write-flake

Update flake inputs:

nix flake update