feat: add nh and separate cachix entries from default.nix

common/cachix.nix

@@ -0,0 +1,29 @@
+{ ... }: {
+  nix = {
+    settings = {
+      substituters = [
+        "https://hyprland.cachix.org"
+        "https://nix-gaming.cachix.org"
+        # Nixpkgs-Wayland
+        "https://cache.nixos.org"
+        "https://nixpkgs-wayland.cachix.org"
+        "https://nix-community.cachix.org"
+        # Neovim and stuff
+        "https://nix-community.cachix.org"
+        # Nh
+        "https://viperml.cachix.org"
+      ];
+      trusted-public-keys = [
+        "hyprland.cachix.org-1:a7pgxzMz7+chwVL3/pzj6jIBMioiJM7ypFP8PwtkuGc="
+        "nix-gaming.cachix.org-1:nbjlureqMbRAxR1gJ/f3hxemL9svXaZF/Ees8vCUUs4="
+        # Nixpkgs-Wayland
+        "cache.nixos.org-1:6NCHdD59X431o0gWypbMrAURkbJ16ZPMQFGspcDShjY="
+        "nixpkgs-wayland.cachix.org-1:3lwxaILxMRkVhehr5StQprHdEo4IrE8sRho9R9HOLYA="
+        # Neovim and stuff
+        "nix-community.cachix.org-1:mB9FSh9qf2dCimDSUo8Zy7bkq5CX+/rkCWyvRCYg3Fs="
+        # Nh
+        "viperml.cachix.org-1:qZhKBMTfmcLL+OG6fj/hzsMEedgKvZVFRRAhq7j8Vh8="
+      ];
+    };
+  };
+}

common/default.nix

@@ -3,6 +3,7 @@
 , lib
 , nixpkgs
 , nixpkgs-wayland
+, nh
 , nur
 , nix-melt
 , nurl
@@ -10,7 +11,9 @@
 , ...
 }: {
   imports = [
+    ./cachix.nix
     home-manager.nixosModules.default
+    nh.nixosModules.default
     ./modules/programs.nix
     ./modules/locale.nix
     ./overlays
@@ -28,27 +31,6 @@
       keep-derivations = true;
       auto-optimise-store = true;
       warn-dirty = false;
-
-      # Cachix
-      substituters = [
-        "https://hyprland.cachix.org"
-        "https://nix-gaming.cachix.org"
-        # Nixpkgs-Wayland
-        "https://cache.nixos.org"
-        "https://nixpkgs-wayland.cachix.org"
-        "https://nix-community.cachix.org"
-        # Neovim and stuff
-        "https://nix-community.cachix.org"
-      ];
-      trusted-public-keys = [
-        "hyprland.cachix.org-1:a7pgxzMz7+chwVL3/pzj6jIBMioiJM7ypFP8PwtkuGc="
-        "nix-gaming.cachix.org-1:nbjlureqMbRAxR1gJ/f3hxemL9svXaZF/Ees8vCUUs4="
-        # Nixpkgs-Wayland
-        "cache.nixos.org-1:6NCHdD59X431o0gWypbMrAURkbJ16ZPMQFGspcDShjY="
-        "nixpkgs-wayland.cachix.org-1:3lwxaILxMRkVhehr5StQprHdEo4IrE8sRho9R9HOLYA="
-        # Neovim and stuff
-        "nix-community.cachix.org-1:mB9FSh9qf2dCimDSUo8Zy7bkq5CX+/rkCWyvRCYg3Fs="
-      ];
     };
 
     # Minimize dowloads of indirect nixpkgs flakes
@@ -59,6 +41,16 @@
   };
   nixpkgs.overlays = [ nixpkgs-wayland.overlay ];
 
+  nh = {
+    enable = true;
+    # weekly cleanup
+    clean = {
+      enable = true;
+      extraArgs = "--keep-since 30d";
+    };
+  };
+  environment.variables.FLAKE = "/home/matt/.nix";
+
   services.xserver = {
     layout = "ca";
     xkbVariant = "multix";