#  My first run with nix. The config is based on Matthias Benaets config and youtube tutorial
#  https://github.com/MatthiasBenaets/nixos-config
#  https://www.youtube.com/watch?v=AGVXJ-TIv3Y
#
#  flake.nix *
#   ├─ ./hosts
#   │   └─ default.nix
{
  description = "Opel personal NixOS Flake config";

  inputs = {
    nixpkgs.url = "github:NixOS/nixpkgs/nixos-26.05";
    nixos-hardware.url = "github:NixOS/nixos-hardware/master";

    home-manager = {
      # User Package Management
      url = "github:nix-community/home-manager/release-26.05";
      inputs.nixpkgs.follows = "nixpkgs";
    };

    agenix = {
      url = "github:ryantm/agenix";
      inputs.nixpkgs.follows = "nixpkgs";
    };

    lanzaboote = {
      url = "github:nix-community/lanzaboote/master";
      inputs.nixpkgs.follows = "nixpkgs";
    };
  };

  outputs = {
    self,
    nixpkgs,
    nixos-hardware,
    home-manager,
    agenix,
    lanzaboote,
    ...
  } @ inputs: let
    systems = [
      "x86_64-linux"
    ];
    forAllSystems = nixpkgs.lib.genAttrs systems;
  in {
    # Your custom packages
    # Accessible through 'nix build', 'nix shell', etc
    packages = forAllSystems (system: import nixpkgs {pkgs = nixpkgs.legacyPackages.${system};});
    # Formatter for your nix files, available through 'nix fmt'
    # Other options beside 'alejandra' include 'nixpkgs-fmt'
    formatter = forAllSystems (system: nixpkgs.legacyPackages.${system}.alejandra);

    nixosConfigurations = ( # NixOS configurations
      import ./hosts {
        inherit (nixpkgs) lib;
        inherit inputs nixpkgs nixos-hardware home-manager agenix lanzaboote; # Also inherit home-manager so it does not need to be defined here.
      }
    );
  };
}