NixOS Configuration

This repository contains a modular NixOS configs and packages built with:

• Nix Flakes
• flake-parts
• nix-wrapper-modules
• import-tree
• sops-nix

The configuration follows a feature → profile → host architecture.

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Machines

NixOS Hosts

Host	Description
zeno	Main desktop
aurele	Laptop
mark	VPS / server

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Architecture

features → profiles → hosts

• features: small reusable modules (ntp, tailscale, etc.)
• profiles: reusable bundles (base, desktop, server)
• hosts: final machine configurations
• packages: wrapped packages (nvim, niri, etc.)

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Project Structure

Targeted modules Structure

modules/
├── nixos/
│   ├── features/
│   ├── profiles/
hosts/
packages/

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Design Notes

• import-tree is used only for flake modules and reusable components
• hardware configurations are isolated in hardware/
• files prefixed with _ are ignored by import-tree
• modules/ contains reusable logic

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Secrets (SOPS)

Required key file:

/var/lib/sops-nix/keys.txt

Edit secrets

export SOPS_AGE_KEY_FILE=/var/lib/sops-nix/keys.txt
nix-shell -p sops --run "sops secrets/thesecretfile.yaml"

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Prerequisites

Enable flakes

https://nixos.wiki/wiki/flakes

Configure binary caches

Add the following to /etc/nix/nix.conf:

trusted-users = root anthony

substituters = https://datantho-nixos.cachix.org https://dat-antho-shared.cachix.org https://dat-antho-mark.cachix.org https://dat-antho-zeno.cachix.org https://dat-antho-aurele.cachix.org https://cache.nixos.org https://nix-community.cachix.org

trusted-public-keys = datantho-nixos.cachix.org-1:e1Wvy2MQcqrTm5Vedsat55IrNNZRqYvJppfbjMECXOE= nix-community.cachix.org-1:mB9FSh9qf2dCimDSUo8Zy7bkq5CX+/rkCWyvRCYg3Fs= cache.nixos.org-1:6NCHdD59X431o0gWypbMrAURkbJ16ZPMQFGspcDShjY= dat-antho-shared.cachix.org-1:OwZBh4RgqUCqhpPTLfOobK9ZZ+J00O/QElfty7ugyJE= dat-antho-mark.cachix.org-1:RM8g7Bt+5ZMNEr0lDbdZgSwlkjxmkJhNch9YJma+5Bc= dat-antho-aurele.cachix.org-1:fBRYiSUL8AHbNC45x6BZpgc3bJpztGT7tp5p615zW7s= dat-antho-zeno.cachix.org-1:9ULNh7pIZKUoY4GuMLEfkuZgNFH/bmfrQEM/6eHgS7g=

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Usage

NixOS systems

Using nh (recommended)

Switch:

nh os switch .#<host>

Example:

nh os switch .#zeno

Dry run:

nh os test .#zeno

Build only:

nh os build .#zeno

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Using nixos-rebuild

sudo nixos-rebuild switch --flake .#<host>

Example:

sudo nixos-rebuild switch --flake .#aurele

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Using the packages and nix profile

A package with common dev tools is exposed to install it use :

nix run "git+https://git.anthonyhengy.fr/anthony/nixos-config.git#nvim"
nix profile add "git+https://git.anthonyhengy.fr/anthony/nixos-config.git#dev-tools"
ls -l ~/.nix-profile/bin/ # to list available packages

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