{ nixosUsers ? {}, nixosGroups ? {}, nixosModules, hmModules ? { default = {}; }, ...}@flake: { nixpkgs, ... }@inputs: { host, ... }@imports: let
  host' = name: snippets: let
    system = { namespace?"fbs42" }: nixpkgs.lib.nixosSystem {
      specialArgs = { inherit inputs flake namespace; };
      modules = builtins.concatLists (map (base: builtins.attrValues (flake.lib.scan { base = "${base}/host/${name}"; })) flake.lib.schema.base)
        ++ [ { config.networking.hostName = name; } ]
        ++ [ nixosModules.default ]
        ++ [ inputs.home-manager.nixosModules.default ]
        ++ [ { config.home-manager.sharedModules = [ hmModules.default ]; } ]
        ++ [ { config.home-manager.extraSpecialArgs = { inherit flake namespace; }; } ]
        ++ builtins.attrValues nixosUsers
        ++ builtins.attrValues nixosGroups
        ;
    };

    cfg = assert builtins.length snippets == 1; builtins.head snippets;
  in system cfg;

in builtins.mapAttrs host' host