{
  description = "system";

  inputs = {
    nixpkgs.url = "nixpkgs/nixos-unstable";
    nixpkgs-stable.url = "nixpkgs/nixos-23.11";
    nixpkgs-unstable-small.url = "nixpkgs/nixos-unstable-small";
    home-manager = {
      url = "github:nix-community/home-manager";
      inputs.nixpkgs.follows = "nixpkgs";
    };
    nixos-hardware.url = "github:networkException/nixos-hardware/apple-t2-init";
    mac-brcm-fw = {
      url = "path:/home/jade/nix-configs/mac-brcm-fw";
      flake = false;
    };
    #mms.url = "github:mkaito/nixos-modded-minecraft-servers";
    easymacros.url = "git+https://gitlab.com/obsidianical/easymacros.git";
    meowsite.url = "git+https://gitlab.com/obsidianical/meowsite.git";
    wordsofgod.url = "git+https://gitlab.com/obsidianical/wordsofgod.git";
    karton.url = "git+https://gitlab.com/obsidianical/microbin.git";
    arion.url = "github:hercules-ci/arion";
    gumseite.url = "git+https://gitlab.com/schrottkatze/gum-schulsachen.git";
    fenix.url = "github:nix-community/fenix";
  };

  outputs = {
    self,
    nixpkgs,
    nixpkgs-stable,
    nixpkgs-unstable-small,
    home-manager,
    nixos-hardware,
    mac-brcm-fw,
    fenix,
    ...
  } @ inputs: let
    system = "x86_64-linux";
    pkgs = nixpkgs.legacyPackages.${system};
    pkgs-stable = nixpkgs-stable.legacyPackages.${system};
    pkgs-unstable-small = nixpkgs-unstable-small.legacyPackages.${system};
    rs-toolchain = with fenix.packages.${system};
      combine [
        default.toolchain
        rust-analyzer
      ];
    rs-platform = pkgs.makeRustPlatform {
      cargo = rs-toolchain;
      rustc = rs-toolchain;
    };
    rs-programs = final: prev: {
      s10e-jrnl = rs-platform.buildRustPackage {
        pname = "jrnl";
        version = "0.0.1";
        src = ./programs/jrnl;
        cargoLock.lockFile = ./programs/jrnl/Cargo.lock;
      };
    };
  in {
    devShells."x86_64-linux".default = pkgs.mkShell {
      buildInputs = [
        (pkgs.haskellPackages.ghcWithPackages
          (pkgs:
            with pkgs; [
              xmonad
              xmonad-contrib
              xmobar
              statgrab
            ]))
        rs-toolchain
        pkgs.haskell-language-server
      ];
    };
    nixosConfigurations = {
      monosodium-glutamate-g = nixpkgs.lib.nixosSystem {
        specialArgs = {
          inherit inputs pkgs-unstable-small pkgs-stable rs-programs;
        };
        system = "x86_64-linux";
        modules = [
          ./hosts/monosodium-glutamate-g/configuration.nix
          home-manager.nixosModules.home-manager
          {
            home-manager.useGlobalPkgs = true;
            home-manager.useUserPackages = true;
            home-manager.users.jade = {
              nixosConfig,
              pkgs,
              ...
            }: {
              home.sessionVariables.TZ = nixosConfig.time.timeZone;
              home.stateVersion = "${nixosConfig.system.stateVersion}";
            };
          }
        ];
      };
      catbook-j = nixpkgs.lib.nixosSystem {
        specialArgs = {
          inherit inputs pkgs-unstable-small pkgs-stable rs-programs;
        };
        system = "x86_64-linux";
        modules = [
          ./hosts/catbook-j/configuration.nix
          home-manager.nixosModules.home-manager
          {
            home-manager.useGlobalPkgs = true;
            home-manager.useUserPackages = true;
            home-manager.users.jade = {
              nixosConfig,
              pkgs,
              ...
            }: {
              home.sessionVariables.TZ = nixosConfig.time.timeZone;
              home.stateVersion = "22.11";
            };
          }
        ];
      };
      potatobook-g = nixpkgs.lib.nixosSystem {
        specialArgs = {
          inherit inputs pkgs-unstable-small rs-programs;
        };
        system = "x86_64-linux";
        modules = [
          "${mac-brcm-fw}"
          ./hosts/potatobook-g/configuration.nix
          home-manager.nixosModules.home-manager
          {
            home-manager.useGlobalPkgs = true;
            home-manager.useUserPackages = true;
            home-manager.users.jade = {
              nixosConfig,
              pkgs,
              ...
            }: {
              home.sessionVariables.TZ = nixosConfig.time.timeZone;
              home.stateVersion = "${nixosConfig.system.stateVersion}";
            };
          }
          nixos-hardware.nixosModules.apple-t2
        ];
      };
    };
  };
}