{
  description = "DIvan package set";

  inputs = {
    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
    flake-utils.url = "github:numtide/flake-utils";

    ponyfetch = {
      url = "git+https://git.divan2000.su/DIvan2000/ponyfetch";
      inputs.nixpkgs.follows = "nixpkgs";
    };

    terminal-oscilloscope = {
      url = "git+https://git.divan2000.su/DIvan2000/terminal-oscilloscope";
      inputs.nixpkgs.follows = "nixpkgs";
    };
  };

  outputs = { nixpkgs, flake-utils, ... }@inputs:
    flake-utils.lib.eachDefaultSystem (system:
      let
        pkgs = import nixpkgs { inherit system; };

        callPackage = pkgs.callPackage;
      in {
        packages = {
          ponyfetch = inputs.ponyfetch.packages.${system}.default;
        } // lib.optionalAttrs (hasPackage inputs.terminal-oscilloscope) {
          terminal-oscilloscope = defaultPackage inputs.terminal-oscilloscope;
        };
      });
}