{
  inputs = {
    nixpkgs-unstable.url = "github:NixOS/nixpkgs/nixos-unstable";
    nixpkgs.url = "github:NixOS/nixpkgs/nixos-24.11";
    nextcloud = {
      url = "github:onny/nixos-nextcloud-testumgebung";
      inputs.nixpkgs.follows = "nixpkgs";
    };
    gtrackmap = {
      url = "github:gtrackmap/gtrackmap";
      inputs.nixpkgs.follows = "nixpkgs";
    };
    lanzaboote.url = "github:nix-community/lanzaboote";
    nixos-hardware.url = "github:NixOS/nixos-hardware/master";
    auto-cpufreq = {
      url = "github:AdnanHodzic/auto-cpufreq";
      inputs.nixpkgs.follows = "nixpkgs";
    };
    home-manager = {
      url = "github:nix-community/home-manager/release-24.11";
      inputs = {
        nixpkgs.follows = "nixpkgs";
      };
    };
    commander-nvim = {
      url = "github:FeiyouG/commander.nvim";
      flake = false;
    };
    vimpeccable = {
      url = "github:svermeulen/vimpeccable";
      flake = false;
    };
    windline-nvim = {
      url = "github:windwp/windline.nvim";
      flake = false;
    };
    gen-nvim = {
      url = "github:David-Kunz/gen.nvim";
      flake = false;
    };
    ketchup = {
      url = "github:repomaa/ketchup";
      inputs.nixpkgs.follows = "nixpkgs";
    };
    ksoloti-pr.url = "github:repomaa/nixpkgs/pkg/ksoloti";
  };
  outputs = { nixpkgs, ... }@inputs:
    let
      bin.sshPort = 2222;
      ssh.publicKeys.yubikey = "ecdsa-sha2-nistp256 AAAAE2VjZHNhLXNoYTItbmlzdHAyNTYAAAAIbmlzdHAyNTYAAABBBLIUkESu5NnBi1M0+ZjYrkp6/rIFuwc3aguspf98jmOydNce6l65cnS3GRzc9oWx4lu11ahi87ZuE+pYV+gaHm4=";
      specialArgs = { inherit inputs bin ssh; };
      system = "x86_64-linux";
      pkgs = nixpkgs.legacyPackages.${system};
    in
    {
      devShells.${system}.default = pkgs.mkShell {
        packages = with pkgs; [
          nix-output-monitor
        ];
      };
      nixosConfigurations = {
        freun-dev = nixpkgs.lib.nixosSystem {
          inherit specialArgs;
          system = "aarch64-linux";
          modules = [ ./modules ./hosts/freun.dev ];
        };

        radish = nixpkgs.lib.nixosSystem {
          inherit system specialArgs;
          modules = [ ./modules ./hosts/radish ];
        };

        apu = nixpkgs.lib.nixosSystem {
          inherit system specialArgs;
          modules = [ ./modules ./hosts/apu ];
        };
      };
    };
}