NixOS Niri flake setup

Features

• Hyprland (Hypridle, Hyprlock, Hyprpaper, Mako, Albert, Swaync, Waybar)
• Niri (with mostly the same wayland DE)
• Nix Flakes
• Theme handled by Stylix
• Automatic light and dark themes
• Multiple hosts
• Home config as a Nix Module
• Home Impermanence (on Akatosh)
• Secrets Management

NixOS Config

 hosts
├──  akatosh
│   ├──  default.nix
│   ├──  hardware-configuration.nix
│   └──  sops.nix
├──  arkay
│   ├──  default.nix
│   ├──  hardware-configuration.nix
│   └──  sops.nix
├──  common
│   ├──  global
│   ├──  optional
│   ├──  secrets.yaml
│   └──  users
├──  dagon
│   ├──  adguardhome.nix
│   ├──  anubis.nix
│   ├──  default.nix
│   ├──  glance.nix
│   ├──  hardware-configuration.nix
│   ├──  hugo.nix
│   ├──  jellyfin.nix
│   ├──  karakeep.nix
│   ├──  nextcloud.nix
│   ├──  nginx.nix
│   ├──  restic.nix
│   ├──  secrets.yaml
│   └──  sops.nix
└──  magnus
	├──  default.nix
	├──  hardware-configuration.nix
	└──  sops.nix

• magnus: Main System
• akatosh: Laptop (disk managed with disko with impermanence for NixOS)
• dagon: Home Server hosted on a Raspberry Pi running NextCloud, Jellyfin, Karakeep, etc
• arkay: Work laptop

Most of the system configuration is shared between hosts.

HomeManager Config

.
└── louis
    ├── akatosh.nix
    ├── features
    │   ├── cli
    │   ├── default.nix
    │   ├── desktop
    │   ├── dev
    │   ├── gaming
    │   ├── gui
    │   ├── impermanence.nix
    │   ├── misc
    │   └── virtualization
    ├── global
    │   ├── default.nix
    │   ├── home-manager.nix
    │   ├── options
    │   └── tools
    └── magnus.nix

There are some tools enabled by default (home/louis/global/tools.nix, helix) but most features are optional.

Features are enabled using options defined in (home/louis/global/options). See magnus.nix:

home-config = {
  cli.commonTools.enable = true;   # eza, bat, wget, ...
   gui = {
      kitty.enable = true;         # terminal
      firefox = {
        enable = true;
        searxngInstance = { # privacy-focused search engine
          local = true; # self-hosted
          url = "http://127.0.0.1";
          port = 30070;
        };
        homepageUrl = "localhost:30069"; # glance homepage
      };
      glance = {
        enable = true;
        host = "localhost";
        port = 30069;
      };
      social.enable = true; # discord, beeper, ...
      utils.enable = true;# spotify, file manager, calibre, ...
      ai.lmstudio.enable = true;
    };
    dev = {
      vscode.enable = true;
      devTools.enable = true; # tokei, tmux, ...
    };
    desktop.wayland = {
      enable = true; # contains most of my wayland "DE" (waybar, albert, swaync, ...)
      # hyprland = {
      #   enable = true;
      #   nvidia = true;
      # };
      niri.enable = true;
    };
  virtualization.enable = true;   # qemu, ...
  # other options exists (gaming, ...)
};

A big refactor is needed here to move these options to the NixOS config as when using home-manager as a NixOS module, it's better to write all options in the NixOS config.

Theming

Style is handled by Stylix:

Theme and wallpaper auto switch from light to dark on sunset using darkman and nix specialisations.

What you would change to use this config

Delete what you wouldn't use

Here are some (random) examples:

• Nextcloud
• Helix/NixVim
• Some VSCode extensions
• LMStudio
• Git signing keys

What you need to do

NixOS

• Have experimental features (nix-commands and flakes) enabled in your initial configuration
• Clone the repo
• Replace all occurences of louis by your username
• Replace all occurences of magnus or hircine by your hostname (only hircine uses impermanence)
• Either remove secrets management through sops or replace them with your own secrets. A hashed password could be considered as being enough so don't bother with secrets if you don't have any. (that's in ./hosts/common/users/USERNAME/default.nix)
• Replace hardware-config.nix with your own file produced by nixos-generate-config.

Home Manager

• You should already have changed magnus's config to be yours
• You should probably follow this steps:
  • Comment out all features in ./home/USERNAME/HOSTNAME.nix
  • For each feature, see what it enables, remove what you don't want, then enable it or not
  • You should be good to rebuild : sudo nixos-rebuild --flake .#HOSTNAME boot then reboot now.