{
  inputs = {
    nixpkgs.url = "https://channels.nixos.org/nixos-unstable/nixexprs.tar.zst";

    disko.url = "github:nix-community/disko";
    disko.inputs.nixpkgs.follows = "nixpkgs";

    tranquil = {
      url = "git+https://tangled.org/tranquil.farm/tranquil-pds";
      inputs.nixpkgs.follows = "nixpkgs";
    };

    nixos-pbs = {
      url = "github:AWildLeon/nixos-pbs";
      inputs.nixpkgs.follows = "nixpkgs";
      inputs.flake-compat.follows = "flake-compat";
    };

    tangled = {
      url = "git+https://tangled.org/@tangled.org/core";
      inputs.nixpkgs.follows = "nixpkgs";
      inputs.microvm.follows = "microvm";
      inputs.flake-compat.follows = "microvm";
      inputs.fenix.follows = "fenix";
      inputs.gomod2nix.follows = "gomod2nix";
    };

    lanzaboote = {
      url = "github:nix-community/lanzaboote";
      inputs.nixpkgs.follows = "nixpkgs";
      inputs.crane.follows = "crane";
      inputs.pre-commit.follows = "git-hooks";
    };

    stylix = {
      url = "github:nix-community/stylix";
      inputs.nixpkgs.follows = "nixpkgs";
      inputs.systems.follows = "nix-systems";
      inputs.flake-parts.follows = "flake-parts";
    };

    nixos-hardware.url = "github:NixOS/nixos-hardware/master";

    microvm.url = "github:microvm-nix/microvm.nix";
    microvm.inputs.nixpkgs.follows = "nixpkgs";

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

    #jail-nix.url = "sourcehut:~alexdavid/jail.nix";
    jail-nix.url = "git+ssh://git@git.cow.computer/cow/jail.nix";

    nixvim = {
      url = "github:nix-community/nixvim";
      inputs.nixpkgs.follows = "nixpkgs";
      inputs.systems.follows = "nix-systems";
      inputs.flake-parts.follows = "flake-parts";
    };

    noctalia = {
      url = "github:noctalia-dev/noctalia-shell";
      inputs.nixpkgs.follows = "nixpkgs";
    };

    noctalia-official-plugins = {
      url = "github:noctalia-dev/official-plugins";
      flake = false;
    };

    cow-nixos-private = {
      url = "git+ssh://git@git.cow.computer/cow/nixos-private";
      inputs.nixpkgs.follows = "nixpkgs";
      inputs.home-manager.follows = "home-manager";
      inputs.sops-nix.follows = "sops-nix";
    };

    cow-writeups = {
      url = "git+ssh://git@git.cow.computer/cow/writeups.cow.computer";
      inputs.nixpkgs.follows = "nixpkgs";
    };

    personal-website = {
      url = "git+ssh://git@git.cow.computer/cow/personal-website";
      # inputs.nixpkgs.follows = "nixpkgs";
      # TODO: fix build with latest zola
      inputs.flake-parts.follows = "flake-parts";
    };

    website = {
      url = "git+ssh://git@git.cow.computer/cow/website";
      # inputs.nixpkgs.follows = "nixpkgs";
      # TODO: fix build with latest zola
      # inputs.flake-parts.follows = "flake-parts";
    };

    cowingtonpost-website = {
      url = "git+https://git.cow.computer/cow/cowingtonpost.com";
      inputs.nixpkgs.follows = "nixpkgs";
      inputs.flake-parts.follows = "flake-parts";
    };

    cows-noctalia-plugins = {
      url = "git+https://tangled.org/cow.computer/cows-noctalia-plugins";
      flake = false;
    };

    lix = {
      url = "https://git.lix.systems/lix-project/lix/archive/main.tar.gz";
      flake = false;
    };

    wallpapers = {
      url = "git+ssh://git@git.cow.computer/cow/wallpapers";
      flake = false;
    };

    lix-module = {
      url = "https://git.lix.systems/lix-project/nixos-module/archive/main.tar.gz";
      inputs.nixpkgs.follows = "nixpkgs";
      inputs.lix.follows = "lix";
      inputs.flake-utils.follows = "flake-utils";
    };

    flake-parts.url = "github:hercules-ci/flake-parts";
    nixos-raspberrypi = {
      url = "github:nvmd/nixos-raspberrypi/main";
      inputs.nixpkgs.follows = "nixpkgs";
      inputs.flake-compat.follows = "flake-compat";
    };

    nix-topology = {
      url = "github:oddlama/nix-topology";
      inputs.nixpkgs.follows = "nixpkgs";
      inputs.flake-parts.follows = "flake-parts";
    };

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

    dns = {
      url = "github:nix-community/dns.nix";
      inputs.nixpkgs.follows = "nixpkgs";
      inputs.flake-utils.follows = "flake-utils";
    };

    hosts = {
      url = "github:StevenBlack/hosts";
      inputs.nixpkgs.follows = "nixpkgs";
    };
    helium-nix = {
      url = "github:cowingtonpost1/helium-nix?ref=rolling";
      inputs.nixpkgs.follows = "nixpkgs";
    };
    run0-sudo-shim = {
      url = "github:lordgrimmauld/run0-sudo-shim";
      inputs.nixpkgs.follows = "nixpkgs";
      inputs.treefmt-nix.follows = "treefmt-nix";
    };
    ircv3-filehost-server = {
      url = "git+https://codeberg.org/cowingtonpost/ircv3-filehost-server.git";
      inputs.nixpkgs.follows = "nixpkgs";
      inputs.flake-utils.follows = "flake-utils";
      inputs.gomod2nix.follows = "gomod2nix";
    };

    wire = {
      url = "github:forallsys/wire/stable";
      inputs.nixpkgs.follows = "nixpkgs";
      inputs.fenix.follows = "fenix";
      inputs.flake-parts.follows = "flake-parts";
      inputs.systems.follows = "nix-systems";
      inputs.linux-systems.follows = "nix-linux-systems";
      inputs.nixpkgs_current_stable.follows = "nixpkgs";
      inputs.colmena_benchmarking.inputs = {
        flake-compat.follows = "flake-compat";
        flake-utils.follows = "flake-utils";
        nixpkgs.follows = "nixpkgs";
        stable.follows = "nixpkgs";
      };
      inputs.treefmt-nix.follows = "treefmt-nix";
      inputs.crane.follows = "crane";
      inputs.flake-compat.follows = "flake-compat";
      inputs.git-hooks.follows = "git-hooks";
    };

    selfhosted-icons = {
      url = "github:selfhst/icons";
      flake = false;
    };

    nixpak = {
      url = "github:nixpak/nixpak";
      inputs.nixpkgs.follows = "nixpkgs";
      inputs.flake-parts.follows = "flake-parts";
    };

    # deduplication inputs
    flake-compat = {
      url = "github:edolstra/flake-compat";
    };

    treefmt-nix = {
      url = "github:numtide/treefmt-nix";
      inputs.nixpkgs.follows = "nixpkgs";
    };

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

    crane = {
      url = "github:ipetkov/crane";
    };

    flake-utils = {
      url = "github:numtide/flake-utils";
      inputs.systems.follows = "nix-systems";
    };

    gomod2nix = {
      url = "github:nix-community/gomod2nix";
      inputs.nixpkgs.follows = "nixpkgs";
      inputs.flake-utils.follows = "flake-utils";
    };

    git-hooks = {
      url = "github:cachix/git-hooks.nix";
      inputs.flake-compat.follows = "flake-utils";
      inputs.nixpkgs.follows = "nixpkgs";
    };

    chaotic = {
      url = "github:chaotic-cx/nyx";
      inputs.nixpkgs.follows = "nixpkgs";
      inputs.home-manager.follows = "home-manager";
    };

    nix-systems.url = "github:nix-systems/default";
    nix-linux-systems.url = "github:nix-systems/default-linux";
  };
  outputs =
    inputs:
    inputs.flake-parts.lib.mkFlake { inherit inputs; } {
      systems = [
        "x86_64-linux"
        "aarch64-linux"
      ];
      imports = [
        ./hosts
        inputs.nix-topology.flakeModule
        inputs.treefmt-nix.flakeModule
        ./flake
      ];
      flake = {
        nixosModules = {
        };
      };
      perSystem =
        {
          self',
          pkgs,
          inputs',
          system,
          lib,
          ...
        }:
        {
          packages = lib.packagesFromDirectoryRecursive {
            inherit (pkgs) callPackage;
            directory = ./packages/.;
          };

          treefmt = {
            programs = {
              nixfmt.enable = true;
            };
          };
          topology = {
            modules = [
              { _module.args.inputs = inputs; }
              ./topology.nix
            ];
          };
        };
    };

}