linting and formatting existing code

nixos/flake-module.nix

@@ -1,20 +1,30 @@
 # copied and adopted from maralorns config
-
 # This automatically searches for nixos configs in ./machines/${name}/configuration.nix
 # and exposes them as outputs.nixosConfigurations.${name}
-{ withSystem, lib, inputs, ... }: {
+{
+  withSystem,
+  lib,
+  inputs,
+  ...
+}: {
   flake = {
-    nixosConfigurations = withSystem "x86_64-linux" ({ pkgs, ... }:
-    let
+    nixosConfigurations = withSystem "x86_64-linux" ({pkgs, ...}: let
       machines = builtins.attrNames (builtins.readDir ./machines);
-      makeSystem = name:
+      makeSystem = name: let
+        importedConfig = import (./. + "/machines/${name}/configuration.nix");
+        systemConfig =
+          if lib.isFunction importedConfig
+          then x: importedConfig (x // {flake-inputs = inputs;})
+          else importedConfig;
+      in
         pkgs.nixos {
           imports = [
-            (import (./. + "/machines/${name}/configuration.nix") inputs)
+            systemConfig
             inputs.sops-nix.nixosModules.sops
             inputs.impermanence.nixosModules.impermanence
           ];
         };
-    in lib.genAttrs machines makeSystem);
+    in
+      lib.genAttrs machines makeSystem);
   };
 }