{
  description = "cy's flake";

  inputs = {
    nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
    sops-nix = {
      url = "github:Mic92/sops-nix";
      inputs.nixpkgs.follows = "nixpkgs";
    };
    home-manager = {
      url = "github:nix-community/home-manager";
      inputs.nixpkgs.follows = "nixpkgs";
    };
  };

  outputs =
    {
      self,
      nixpkgs,
      home-manager,
      ...
    }@inputs:
    let
      lib = nixpkgs.lib;
      inherit (self) outputs;

      systems = [ "x86_64-linux" ];
      forEachSystem = f: lib.genAttrs systems (system: f pkgsFor.${system});
      pkgsFor = lib.genAttrs systems (
        system:
        import nixpkgs {
          inherit system;
          config = {
            allowUnfree = true;
          };
        }
      );
    in
    {
      packages = forEachSystem (pkgs: import ./pkgs { inherit pkgs; });
      formatter = forEachSystem (pkgs: pkgs.nixfmt-rfc-style);
      devShells = forEachSystem (pkgs: import ./shells { inherit pkgs; });
      nixosModules = import ./modules/nixos;
      homeManagerModules = import ./modules/home-manager;
      overlays = import ./overlays { inherit inputs outputs; };

      nixosConfigurations =
        let
          pkgs = pkgsFor.x86_64-linux;
        in
        {
          ytnix = lib.nixosSystem {
            specialArgs = { inherit inputs outputs; };
            modules = [
              {
                nixpkgs = { inherit pkgs; };
              }
              ./hosts/ytnix
              inputs.sops-nix.nixosModules.sops
            ];
          };

          chunk = lib.nixosSystem {
            specialArgs = { inherit inputs outputs; };
            modules = [
              {
                nixpkgs = { inherit pkgs; };
              }
              ./hosts/chunk
              inputs.sops-nix.nixosModules.sops
            ];
          };
        };

      homeConfigurations = {
        "yt@ytnix" = home-manager.lib.homeManagerConfiguration {
          pkgs = pkgsFor.x86_64-linux;
          extraSpecialArgs = { inherit inputs outputs; };
          modules = [
            ./home/yt/ytnix.nix
          ];
        };

        "yt@chunk" = home-manager.lib.homeManagerConfiguration {
          pkgs = pkgsFor.x86_64-linux;
          extraSpecialArgs = { inherit inputs outputs; };
          modules = [
            ./home/yt/chunk.nix
          ];
        };
      };
    };
}