Flake: Easier Overlay Spec

flake.nix

@@ -14,6 +14,10 @@
     overlays = import ./overlays/default.nix inputs;
     modules = import ./modules/default.nix inputs;
 
+    overlays' = l: ({ config, pkgs, ... }: {
+      nixpkgs.overlays = l;
+    });
+
     pkgs_linux-x86_64 = nixpkgs.legacyPackages."x86-linux";
     pkgs_linux-aarch64 = nixpkgs.legacyPackages."aarch64-linux";
 
@@ -36,12 +40,10 @@
       nixos = nixosSystem' {
         modules =
           [
-            ({ config, pkgs, ... }: {
-              nixpkgs.overlays = [
-                overlays.hydra
-                overlays.nvidiaContainer
-              ];
-            })
+            (overlays' [
+              overlays.hydra
+              overlays.nvidiaContainer
+            ])
             ./machines/hippocampus/configuration.nix
             modules.sops
           ];
@@ -49,9 +51,9 @@
       universedesktop = nixosSystem' {
         modules =
           [
-            ({ config, pkgs, ... }: {
-              nixpkgs.overlays = [ overlays.emacs ];
-            })
+            (overlays' [
+              overlays.emacs
+            ])
             ./machines/universedesktop/configuration.nix
             modules.sops
           ];
@@ -60,9 +62,9 @@
     darwinConfigurations."UniverseAir" = darwinSystem' {
       modules = [
         ./machines/universeair/configuration.nix
-        ({ config, pkgs, ... }: {
-          nixpkgs.overlays = [ overlays.emacs ];
-        })
+        (overlays' [
+          overlays.emacs
+        ])
         modules.home-manager-darwin
       ];
     };