diff --git a/lib/nixos.nix b/lib/nixos.nix
deleted file mode 100644
index 4595af7..0000000
--- a/lib/nixos.nix
+++ /dev/null
@@ -1,25 +0,0 @@
-{ inputs, lib, pkgs, ... }:
-
-with lib;
-with lib.my;
-let sys = "x86_64-linux";
-in {
-  mkHost = path: attrs @ { system ? sys, ... }:
-    nixosSystem {
-      inherit system;
-      specialArgs = { inherit lib inputs system; };
-      modules = [
-        {
-          nixpkgs.pkgs = pkgs;
-          networking.hostName = mkDefault (removeSuffix ".nix" (baseNameOf path));
-        }
-        (filterAttrs (n: v: !elem n [ "system" ]) attrs)
-        ../.   # /default.nix
-        (import path)
-      ];
-    };
-
-  mapHosts = dir: attrs @ { system ? system, ... }:
-    mapModules dir
-      (hostPath: mkHost hostPath attrs);
-}