{
  description = "Home Manager configuration of fs0c131y";

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

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

    nix-darwin = {
      url = "github:LnL7/nix-darwin";
      inputs.nixpkgs.follows = "nixpkgs";
    };
    neovim-nightly-overlay = {
      url =
        "github:nix-community/neovim-nightly-overlay/1afaeebc41dab1029b855b17d78f2348e8dd49e3";
      inputs.nixpkgs.follows = "nixpkgs";
    };

    anyrun = {
      url = "github:uttarayan21/anyrun";
      inputs.nixpkgs.follows = "nixpkgs";
    };
    anyrun-hyprwin = {
      url = "github:uttarayan21/anyrun-hyprwin";
      inputs.nixpkgs.follows = "nixpkgs";
    };
    anyrun-nixos-options = {
      url = "github:n3oney/anyrun-nixos-options";
      inputs.nixpkgs.follows = "nixpkgs";
    };

    anyrun-rink = {
      url = "github:uttarayan21/anyrun-rink";
      inputs.nixpkgs.follows = "nixpkgs";
    };

    ironbar = {
      url = "github:JakeStanger/ironbar";
      inputs.nixpkgs.follows = "nixpkgs";
    };

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

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

    nixneovimplugins = {
      url = "github:NixNeovim/NixNeovimPlugins";
      inputs.nixpkgs.follows = "nixpkgs";
    };

    # { pkgs, inputs, system, ... }:

    # {
    #   nixpkgs.overlays = [
    #     (final: prev: {
    #       postman = prev.postman.overrideAttrs(old: rec {
    #         version = "20230716100528";
    #         src = final.fetchurl {
    #           url = "https://web.archive.org/web/${version}/https://dl.pstmn.io/download/latest/linux_64";
    #           sha256 = "sha256-svk60K4pZh0qRdx9+5OUTu0xgGXMhqvQTGTcmqBOMq8=";

    #           name = "${old.pname}-${version}.tar.gz";
    #         };
    #       });
    #     })
    #   ];
    # }

  };

  outputs =
    { nixpkgs
    , # nixos,
      home-manager
    , nix-darwin
    , flake-utils
    , anyrun
    , neovim-nightly-overlay
    , ...
    }@inputs:
    let
      config_devices = [
        {
          name = "mirai";
          system = "x86_64-linux";
          user = "fs0c131y";
        }
        {
          name = "ryu";
          system = "x86_64-linux";
          user = "servius";
          isNix = true;
        }
        {
          name = "genzai";
          system = "x86_64-linux";
          user = "fs0c131y";
        }
        {
          name = "Uttarayans-MacBook-Pro";
          system = "aarch64-darwin";
          user = "fs0c131y";
        }
        {
          name = "SteamDeck";
          system = "x86_64-linux";
          user = "deck";
        }
      ];

      mkDevice = { device }: {
        isLinux = !isNull (builtins.match ".*-linux" device.system);
        isNix =
          if (builtins.hasAttr "isNix" device) then device.isNix else false;
        isMac = !isNull (builtins.match ".*-darwin" device.system);
        system = device.system;
        name = device.name;
        user = device.user;
      };

      devices =
        builtins.map (device: mkDevice { inherit device; }) config_devices;

      nixos_devices = builtins.filter (x: x.isNix) devices;
      linux_devices = builtins.filter (x: x.isLinux) devices;
      darwin_devices = builtins.filter (x: x.isMac) devices;

      anyrun-overlay = final: prev: {
        anyrun = inputs.anyrun.packages.${prev.system}.anyrun;
        hyprwin = inputs.anyrun-hyprwin.packages.${prev.system}.hyprwin;
        nixos-options =
          inputs.anyrun-nixos-options.packages.${prev.system}.default;
        anyrun-rink = inputs.anyrun-rink.packages.${prev.system}.default;
      };
      # postman-overlay = final: prev: {
      #   postman = prev.postman.overrideAttrs (old: rec {
      #     version = "20230716100528";
      #     src = final.fetchurl {
      #       url =
      #         "https://dl.pstmn.io/download/latest/osx_arm64";
      #       sha256 = "sha256-P7x06KKH0e1Yro93SCEJyiWS/Uv25tWU8A85vxv85hI=";
      #       name = "${old.pname}-${version}.tar.gz";
      #     };
      #   });
      # };
      overlays = [
        inputs.neovim-nightly-overlay.overlay
        anyrun-overlay
        inputs.nixneovim.overlays.default
        inputs.nixneovimplugins.overlays.default
      ];
    in
    {
      nixosConfigurations =
        let devices = nixos_devices;
        in import ./nixos/device.nix {
          inherit devices inputs nixpkgs home-manager overlays;
        };

      darwinConfigurations =
        let devices = darwin_devices;
        in import ./darwin/device.nix {
          inherit devices inputs nixpkgs home-manager overlays nix-darwin;
        };

      homeConfigurations =
        let devices = linux_devices;
        in import ./linux/device.nix {
          inherit devices inputs nixpkgs home-manager overlays;
        };
    };
}