lib/mkNixpkgs.nix: Add function to import nixpkgs with overlays

lib/default.nix

@@ -8,6 +8,7 @@ let
 
   lib = {
     clerie-monitoring-ids = callLibs ./clerie-monitoring-ids.nix;
+    mkNixpkgs = callLibs ./mkNixpkgs.nix;
     nixosSystem = callLibs ./nixosSystem.nix;
   };
 

lib/mkNixpkgs.nix

@@ -0,0 +1,27 @@
+{
+  inputs,
+  self,
+  ...
+}:
+
+/*
+
+  Loads a version of nixpkgs with nixfiles overlays loaded
+
+*/
+{
+  system,
+  nixpkgs ? inputs.nixpkgs,
+  overlays ? [],
+  ...
+}@args:
+
+import nixpkgs {
+  inherit system;
+  overlays = [
+    self.overlays.clerie-inputs
+    self.overlays.clerie-pkgs
+    self.overlays.clerie-build-support
+    self.overlays.clerie-overrides
+  ] ++ overlays;
+}

lib/nixosSystem.nix

@@ -17,11 +17,9 @@
   ...
 }@args:
 
-let
-  localNixpkgs = import ../flake/nixpkgs.nix inputs;
-in inputs.nixpkgs.lib.nixosSystem ({
+inputs.nixpkgs.lib.nixosSystem ({
   system = system;
-  pkgs = if pkgs != null then pkgs else localNixpkgs.${system};
+  pkgs = if pkgs != null then pkgs else self.nixpkgs.${system};
   modules = [
     self.nixosModules.nixfilesInputs
     self.nixosModules.clerie