{
  description = "Nixos config flake";
  inputs = {
    nixpkgs-unstable.url = "github:nixos/nixpkgs/nixos-unstable";
    nixpkgs-stable.url = "github:nixos/nixpkgs/nixos-25.05";

    home-manager.url = "github:nix-community/home-manager";
    home-manager.inputs.nixpkgs.follows = "nixpkgs-unstable";

    sops-nix.url = "github:Mic92/sops-nix";
    sops-nix.inputs.nixpkgs.follows = "nixpkgs-unstable";

    firefox-addons.url = "gitlab:rycee/nur-expressions?dir=pkgs/firefox-addons";
    firefox-addons.inputs.nixpkgs.follows = "nixpkgs-unstable";
  };
  outputs = { nixpkgs-stable, nixpkgs-unstable, ... }@inputs:
  let
    mkSystem = { host_name, system ? "x86_64-linux", pkgs ? nixpkgs-unstable }:
      pkgs.lib.nixosSystem {
        inherit system;
        specialArgs = { inherit inputs; };
        modules = [ ./hosts/${host_name} ];
      };

    hosts = {
      desk = {};
      lap = {};
      vm_ollama = {};
      vps_west = { pkgs = nixpkgs-stable; };
      vps_east = { pkgs = nixpkgs-stable; };
    };
  in {
    nixosConfigurations = builtins.mapAttrs (host_name: config:
      mkSystem (config // { inherit host_name; })
    ) hosts;
  };
}