flake.nix


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{
  inputs = {
    nixpkgs.url = "github:nixos/nixpkgs/nixos-25.05";
    unstable.url = "github:nixos/nixpkgs/nixos-unstable";

    home-manager = {
      url = "github:nix-community/home-manager/release-25.05";
      inputs.nixpkgs.follows = "nixpkgs";
    };

    nur.url = "github:nix-community/NUR";
    impermanence.url = "github:nix-community/impermanence";
    hm-isolation.url = "github:3442/hm-isolation";

    nixvirt = {
      url = "github:AshleyYakeley/NixVirt";
      inputs.nixpkgs.follows = "nixpkgs";
    };

    flake-utils.url = "github:numtide/flake-utils";

    lanzaboote = {
      url = "github:nix-community/lanzaboote";

      inputs = {
        nixpkgs.follows = "nixpkgs";
        pre-commit-hooks-nix.follows = "";
      };
    };

    vpsadminos.url = "github:vpsfreecz/vpsadminos";
  };

  outputs =
    flakes@{ self
    , nixpkgs
    , unstable
    , home-manager
    , nur
    , impermanence
    , hm-isolation
    , nixvirt
    , flake-utils
    , lanzaboote
    , vpsadminos
    }:
    let
      system = "x86_64-linux";

      pkgs = importPkgs nixpkgs;

      importPkgs = flake: import flake {
        inherit system;

        config = import ./pkgs/config nixpkgs.lib;
        overlays = [ nur.overlays.default self.overlays.default ];
      };

      inherit (pkgs.local.lib) importAll;

      local = import ./pkgs;
    in
    with pkgs.lib; {
      formatter.${system} = pkgs.nixpkgs-fmt;
      packages.${system} = pkgs.local;

      overlays.default = final: prev:
        let
          locals = local final prev;
        in
        {
          local = locals;
          unstable = importPkgs unstable;
        } // locals.override;

      nixosConfigurations =
        let
          nixosSystem = { modules }: makeOverridable nixpkgs.lib.nixosSystem {
            inherit modules pkgs system;

            specialArgs = {
              inherit flakes;
            };
          };

          hostConfig = host: nixosSystem {
            modules = [
              ./sys
              host
            ];
          };
        in
        mapAttrs (_: hostConfig) (importAll { root = ./sys/platform; });

      homeConfigurations =
        let
          registry = { ... }: {
            config.nix.registry = mapAttrs
              (_: value: { flake = value; })
              flakes;
          };

          home = name: platform: home-manager.lib.homeManagerConfiguration {
            inherit pkgs;

            extraSpecialArgs = {
              inherit flakes;
            };

            modules = [
              ./home
              platform
              registry
            ];
          };
        in
        mapAttrs home (importAll { root = ./home/platform; });
    };
}