diff --git a/flake.nix b/flake.nix
index 8e26870..928065a 100755
--- a/flake.nix
+++ b/flake.nix
@@ -36,28 +36,79 @@
     };
   };
 
-  outputs = inputs:
+  outputs =
+    inputs:
     let
       lib = inputs.nixpkgs.lib;
-      gen = import ./generator.nix { inherit inputs; };
+      supportedSystems = [
+        "x86_64-linux"
+        "aarch64-linux"
+        "x86_64-darwin"
+        "aarch64-darwin"
+      ];
+      linuxSystems = [
+        "x86_64-linux"
+        "aarch64-linux"
+      ];
+      forEachSystem = lib.genAttrs;
+      overlays = import ./overlays { inherit inputs; };
+      mkPkgs =
+        system:
+        import inputs.nixpkgs {
+          inherit system;
+          overlays = overlays ++ [
+            (final: prev: {
+              custom = import ./packages { pkgs = final; };
+            })
+          ];
+          config.allowUnfree = true;
+        };
+      gen = import ./generator.nix { inherit inputs mkPkgs supportedSystems; };
       systemsDir = ./systems;
       isIgnoredSystemDir = name: lib.hasPrefix "_" name || lib.hasPrefix "." name;
-      systemNames = lib.attrNames (lib.filterAttrs
-        (name: type:
+      systemNames = lib.attrNames (
+        lib.filterAttrs (
+          name: type:
           type == "directory"
           && !isIgnoredSystemDir name
-          && builtins.pathExists (systemsDir + "/${name}/cfg.nix"))
-        (builtins.readDir systemsDir));
-      hostsByType = systemType:
-        lib.filter
-          (host: (import (systemsDir + "/${host}/cfg.nix")).syscfg.type == systemType)
-          systemNames;
-      generateHosts = systemType:
-        lib.genAttrs
-          (hostsByType systemType)
-          (host: gen.generate { inherit host; });
-    in {
-      devShells = import ./shells { inherit inputs; };
+          && builtins.pathExists (systemsDir + "/${name}/cfg.nix")
+        ) (builtins.readDir systemsDir)
+      );
+      hostsByType =
+        systemType:
+        lib.filter (host: (import (systemsDir + "/${host}/cfg.nix")).syscfg.type == systemType) systemNames;
+      generateHosts =
+        systemType: lib.genAttrs (hostsByType systemType) (host: gen.generate { inherit host; });
+      flattenPackages =
+        prefix: attrs:
+        lib.concatMapAttrs (
+          name: value:
+          let
+            packageName = lib.concatStringsSep "-" (prefix ++ [ name ]);
+            defaultPackageName = lib.concatStringsSep "-" prefix;
+          in
+          if lib.isDerivation value then
+            {
+              "${if name == "default" && prefix != [ ] then defaultPackageName else packageName}" = value;
+            }
+          else if lib.isAttrs value then
+            flattenPackages (if name == "default" then prefix else prefix ++ [ name ]) value
+          else
+            { }
+        ) attrs;
+      mkPackages =
+        system:
+        let
+          pkgs = mkPkgs system;
+        in
+        lib.optionalAttrs pkgs.stdenv.isLinux (flattenPackages [ ] pkgs.custom);
+    in
+    {
+      packages = forEachSystem linuxSystems mkPackages;
+      devShells = import ./shells {
+        inherit inputs mkPkgs;
+        supportedSystems = linuxSystems;
+      };
 
       nixosConfigurations = generateHosts "nixos";
       darwinConfigurations = generateHosts "macos";
@@ -76,8 +127,8 @@
   # diyu - ?
   # tirnanog - ?
   # valhalla - ?
-  # arcadia - ? 
-  # elysium - ? 
+  # arcadia - ?
+  # elysium - ?
   # empyrean - ?
   # duat - ?
   # sheol - ?
diff --git a/generator.nix b/generator.nix
index ef7dafc..d904367 100755
--- a/generator.nix
+++ b/generator.nix
@@ -1,70 +1,105 @@
-{ inputs, ... }: {
-  generate = { host }:
+{
+  inputs,
+  mkPkgs,
+  supportedSystems,
+  ...
+}:
+{
+  generate =
+    { host }:
     let
       syscfg = import ./systems/${host}/cfg.nix;
       nameValuePair = name: value: { inherit name value; };
-    in ({
-      "nixos" = inputs.nixpkgs.lib.nixosSystem {
-        system = "x86_64-linux";
-        specialArgs = { inherit inputs; };
-        modules = [
-          ./modules/shared/syscfg
-          ./modules/shared/sops
-          ./modules/nixos
-          syscfg
-          ./systems/${host}
-          inputs.sops-nix.nixosModules.sops
-          inputs.home-manager.nixosModules.home-manager
+      systemType = syscfg.syscfg.type or "nixos";
+      defaultSystem =
+        {
+          nixos = "x86_64-linux";
+          macos = "x86_64-darwin";
+          home = "x86_64-linux";
+        }
+        .${systemType} or (throw "Unsupported system type: ${systemType}");
+      system = syscfg.syscfg.system or defaultSystem;
+      checkedSystem =
+        if builtins.elem system supportedSystems then
+          system
+        else
+          throw "Unsupported system '${system}' for host '${host}'";
+      pkgs = mkPkgs checkedSystem;
+    in
+    (
+      {
+        "nixos" = inputs.nixpkgs.lib.nixosSystem {
+          system = checkedSystem;
+          specialArgs = { inherit inputs; };
+          modules = [
+            ./modules/shared/syscfg
+            ./modules/shared/sops
+            ./modules/nixos
+            syscfg
+            ./systems/${host}
+            inputs.sops-nix.nixosModules.sops
+            inputs.home-manager.nixosModules.home-manager
 
-          inputs.nixos-wsl.nixosModules.wsl
-          inputs.vscode-server.nixosModules.default
+            inputs.nixos-wsl.nixosModules.wsl
+            inputs.vscode-server.nixosModules.default
 
-          {
-            home-manager.useGlobalPkgs = true;
-            home-manager.useUserPackages = true;
-            home-manager.extraSpecialArgs = { inherit inputs; };
-            home-manager.users = builtins.listToAttrs (map (userConfig:
-              nameValuePair userConfig.username {
-                imports = [
-                  ./modules/shared/syscfg
-                  ./modules/shared/colors
-                  ./modules/home
-                  syscfg
-                  { usercfg = userConfig; }
-                  inputs.nix-colors.homeManagerModule
-                  inputs.sops-nix.homeManagerModules.sops
-                ];
-              }) syscfg.syscfg.users);
-          }
-        ];
-      };
+            {
+              home-manager.useGlobalPkgs = true;
+              home-manager.useUserPackages = true;
+              home-manager.extraSpecialArgs = { inherit inputs; };
+              home-manager.users = builtins.listToAttrs (
+                map (
+                  userConfig:
+                  nameValuePair userConfig.username {
+                    imports = [
+                      ./modules/shared/syscfg
+                      ./modules/shared/colors
+                      ./modules/home
+                      syscfg
+                      { usercfg = userConfig; }
+                      inputs.nix-colors.homeManagerModule
+                      inputs.sops-nix.homeManagerModules.sops
+                    ];
+                  }
+                ) (syscfg.syscfg.users or [ ])
+              );
+            }
+          ];
+        };
 
-      "macos" = inputs.darwin.lib.darwinSystem {
-        system = "x86_64-darwin";
-        modules = [
-          ./modules/shared/syscfg
-          ./modules/shared/sops
-          syscfg
-          ./systems/${host}
-          inputs.sops-nix.nixosModules.sops
-          inputs.home-manager.darwinModules.home-manager
-          {
-            home-manager.useGlobalPkgs = true;
-            home-manager.useUserPackages = true;
-            home-manager.extraSpecialArgs = { inherit inputs; };
-            home-manager.users = builtins.listToAttrs (map (userConfig:
-              nameValuePair userConfig.username {
-                imports = [
-                  inputs.nix-colors.homeManagerModule
-                  inputs.sops-nix.homeManagerModules.sops
-                ];
-              }) syscfg.syscfg.users);
-          }
-        ];
-      };
-      "home" = inputs.home-manager.lib.homeManagerConfiguration {
-        modules = [ ./modules/home ];
-      };
-      _ = throw "Unsupported system";
-    }.${syscfg.syscfg.type});
+        "macos" = inputs.darwin.lib.darwinSystem {
+          system = checkedSystem;
+          modules = [
+            ./modules/shared/syscfg
+            ./modules/shared/sops
+            syscfg
+            ./systems/${host}
+            inputs.sops-nix.darwinModules.sops
+            inputs.home-manager.darwinModules.home-manager
+            {
+              home-manager.useGlobalPkgs = true;
+              home-manager.useUserPackages = true;
+              home-manager.extraSpecialArgs = { inherit inputs; };
+              home-manager.users = builtins.listToAttrs (
+                map (
+                  userConfig:
+                  nameValuePair userConfig.username {
+                    imports = [
+                      inputs.nix-colors.homeManagerModule
+                      inputs.sops-nix.homeManagerModules.sops
+                    ];
+                  }
+                ) (syscfg.syscfg.users or [ ])
+              );
+            }
+          ];
+        };
+        "home" = inputs.home-manager.lib.homeManagerConfiguration {
+          inherit pkgs;
+          modules = [ ./modules/home ];
+        };
+        _ = throw "Unsupported system";
+      }
+      .${systemType}
+    );
 }
diff --git a/modules/server/containers/builder.nix b/modules/server/containers/builder.nix
index 985fdac..66a58e1 100644
--- a/modules/server/containers/builder.nix
+++ b/modules/server/containers/builder.nix
@@ -61,7 +61,7 @@ let
     };
     in lib.recursiveUpdate base overrides;
   vmBuilder = { name, vm }: ((import "${pkgs.path}/nixos/lib/eval-config.nix" {
-      system = "x86_64-linux";
+      system = pkgs.stdenv.hostPlatform.system;
       modules = [ vm.cfg
         ({ config, lib, modulesPath, ... }: {
         imports = [
diff --git a/modules/shared/sops/default.nix b/modules/shared/sops/default.nix
index c0e96e0..4c2e650 100755
--- a/modules/shared/sops/default.nix
+++ b/modules/shared/sops/default.nix
@@ -1,6 +1,8 @@
 { config, lib, pkgs, ... }:
 let
   isCI = builtins.elem config.syscfg.hostname [ "ci" "sandbox" ];
+  defaultUser = config.users.users.${config.syscfg.defaultUser} or { };
+  defaultGroup = if pkgs.stdenv.isDarwin then "staff" else "users";
   keyFilePath = (if isCI then
     "/var/lib/sops-nix/mock-key.txt"
   else
@@ -8,7 +10,7 @@ let
   sopsFilePath = (if isCI then ./mock.yaml else ./common.yaml);
 in {
   environment.systemPackages = with pkgs; [ sops ];
-  environment.sessionVariables.SOPS_AGE_KEY_FILE = keyFilePath;
+  environment.variables.SOPS_AGE_KEY_FILE = keyFilePath;
 
   sops.defaultSopsFile = sopsFilePath;
   sops.age.keyFile = keyFilePath;
@@ -19,8 +21,8 @@ in {
   {
     "${config.syscfg.hostname}_ssh_priv" = {
       mode = "0400";
-      owner = config.users.users.${config.syscfg.defaultUser}.name;
-      group = config.users.users.${config.syscfg.defaultUser}.group;
+      owner = defaultUser.name or config.syscfg.defaultUser;
+      group = defaultUser.group or defaultGroup;
     };
   }
   (lib.mkIf config.syscfg.net.wlp.enable {
diff --git a/modules/shared/syscfg/default.nix b/modules/shared/syscfg/default.nix
index f10e8a1..6b08db8 100644
--- a/modules/shared/syscfg/default.nix
+++ b/modules/shared/syscfg/default.nix
@@ -14,6 +14,11 @@ in with lib; {
       type = types.enum [ "nixos" "macos" "home" ];
       default = "nixos";
     };
+    system = mkOption {
+      type = types.enum [ "x86_64-linux" "aarch64-linux" "x86_64-darwin" "aarch64-darwin" ];
+      default = "x86_64-linux";
+      description = "Nix platform used to evaluate this host.";
+    };
     defaultUser = mkOption { type = types.str; };
     make = import ./make.nix {inherit lib;};
     net = import ./net.nix {inherit lib;};
diff --git a/overlays/default.nix b/overlays/default.nix
index bccea12..5603d75 100644
--- a/overlays/default.nix
+++ b/overlays/default.nix
@@ -1,4 +1,4 @@
-{ inputs, pkgs, ... }:
+{ inputs, ... }:
 [
   (final: prev: {
     #openttd-jgrpp = import ./openttd-jgrpp { inherit final prev; };
@@ -7,9 +7,7 @@
     # ags =  import ./ags { inherit final prev; };
     wine = final.unstable.wineWow64Packages.unstableFull;
     unstable = import inputs.nixUnstable {
-      
       system = final.stdenv.hostPlatform.system;
-      stdenv.hostPlatform.system = final.stdenv.hostPlatform.system;
       config.allowUnfree = true;
     };
   })
diff --git a/packages/default.nix b/packages/default.nix
index 5f71d85..8965d62 100644
--- a/packages/default.nix
+++ b/packages/default.nix
@@ -1,4 +1,5 @@
-{ pkgs, ... }: {
+{ pkgs, ... }:
+{
   amdgpu_top = pkgs.callPackage ./amdgpu_top { };
   simc = pkgs.qt6.callPackage ./simc { };
   repalette = pkgs.callPackage ./repalette { };
diff --git a/shells/default.nix b/shells/default.nix
index 67d79d1..cf1e51a 100644
--- a/shells/default.nix
+++ b/shells/default.nix
@@ -1,13 +1,19 @@
-{ inputs, ... }:
+{
+  inputs,
+  mkPkgs,
+  supportedSystems,
+  ...
+}:
 let
-  forEachSystem =
-    inputs.nixpkgs.lib.genAttrs [ "aarch64-linux" "x86_64-linux" ];
-in forEachSystem (system:
+  forEachSystem = inputs.nixpkgs.lib.genAttrs supportedSystems;
+in
+forEachSystem (
+  system:
   let
-    overlays = import ../overlays { inherit inputs pkgs; };
-    overrides = { custom = import ../packages { inherit pkgs; }; };
-    pkgs = import inputs.nixpkgs { inherit system overlays; } // overrides;
-  in {
+    pkgs = mkPkgs system;
+  in
+  {
     default = import ./devsh { inherit pkgs; };
     devsh = import ./devsh { inherit pkgs; };
-  })
+  }
+)
diff --git a/systems/asgard/cfg.nix b/systems/asgard/cfg.nix
index d78e0b1..1848cca 100644
--- a/systems/asgard/cfg.nix
+++ b/systems/asgard/cfg.nix
@@ -3,5 +3,6 @@
     hostname = "asgard";
     defaultUser = "sora";
     type = "macos";
+    system = "x86_64-darwin";
   };
 }
diff --git a/systems/asgard/default.nix b/systems/asgard/default.nix
index eb7983e..86c04e9 100755
--- a/systems/asgard/default.nix
+++ b/systems/asgard/default.nix
@@ -12,8 +12,7 @@
   };
 
   fonts = {
-    fontDir.enable = true;
-    fonts = with pkgs; [ ibm-plex openmoji-color material-design-icons ];
+    packages = with pkgs; [ ibm-plex openmoji-color material-design-icons ];
   };
 
   environment = {
@@ -33,8 +32,6 @@
 
   programs = { zsh.enable = true; };
 
-  services = { nix-daemon.enable = true; };
-
   homebrew = {
     enable = true;
     onActivation = {
@@ -54,7 +51,11 @@
     '';
     gc = {
       automatic = true;
-      dates = "weekly";
+      interval = {
+        Weekday = 0;
+        Hour = 3;
+        Minute = 0;
+      };
       options = "--delete-older-than 7d";
     };
     settings = {
@@ -67,6 +68,7 @@
   };
 
   system = {
+    primaryUser = "sora";
     defaults = {
       NSGlobalDomain = {
         KeyRepeat = 1;