refactor: added flake parts

modules/hosts/nixos/twilight/configuration.nix

@@ -0,0 +1,158 @@
+{...}: {
+  flake.nixosModules.twilightConfiguration = {
+    inputs,
+    config,
+    pkgs,
+    ...
+  }: {
+    nixpkgs.config.allowUnfree = true;
+
+    boot.initrd.availableKernelModules = ["usb_storage"];
+    boot.kernelModules = ["sg"];
+
+    boot.loader = {
+      systemd-boot.enable = true;
+      efi.canTouchEfiVariables = true;
+    };
+
+    sops.secrets = {
+      "vpn-keys/tailscale-authkey/twilight" = {
+        sopsFile = "${inputs.secrets}/vpn-keys.yaml";
+      };
+    };
+    host = {
+      users = {
+        leyla = {
+          isDesktopUser = true;
+          isTerminalUser = true;
+          isPrincipleUser = true;
+        };
+        eve.isDesktopUser = true;
+      };
+      hardware = {
+        piperMouse.enable = true;
+        viaKeyboard.enable = true;
+        openRGB.enable = true;
+        graphicsAcceleration.enable = true;
+        directAccess.enable = true;
+      };
+      ai = {
+        enable = true;
+        # TODO: benchmark twilight against defiant and prune this list of models that are faster on defiant
+        models = {
+          # conversation models
+          "Llama 3.1 8B" = {
+            model = "lamma3.1:8b";
+            roles = ["chat" "edit" "apply"];
+          };
+          "deepseek-r1:8b" = {
+            model = "deepseek-r1:8b";
+            roles = ["chat" "edit" "apply"];
+          };
+          "deepseek-r1:32b" = {
+            model = "deepseek-r1:32b";
+            roles = ["chat" "edit" "apply"];
+          };
+
+          # auto complete models
+          "qwen2.5-coder:1.5b-base" = {
+            model = "qwen2.5-coder:1.5b-base";
+            roles = ["autocomplete"];
+          };
+          "qwen2.5-coder:7b" = {
+            model = "qwen2.5-coder:7b";
+            roles = ["autocomplete"];
+          };
+          "deepseek-coder:6.7b" = {
+            model = "deepseek-coder:6.7b";
+            roles = ["autocomplete"];
+          };
+          "deepseek-coder:33b" = {
+            model = "deepseek-coder:33b";
+            roles = ["autocomplete"];
+          };
+
+          # agent models
+          "qwen3:32b" = {
+            model = "qwen3:32b";
+            roles = ["chat" "edit" "apply"];
+          };
+
+          # embedding models
+          "nomic-embed-text:latest" = {
+            model = "nomic-embed-text:latest";
+            roles = ["embed"];
+          };
+        };
+      };
+    };
+    services = {
+      ollama = {
+        enable = true;
+        exposePort = true;
+
+        loadModels = [
+          # conversation models
+          "llama3.1:8b"
+          "deepseek-r1:8b"
+          "deepseek-r1:32b"
+
+          # auto complete models
+          "qwen2.5-coder:1.5b-base"
+          "qwen2.5-coder:7b"
+          "deepseek-coder:6.7b"
+          "deepseek-coder:33b"
+
+          # agent models
+          "qwen3:32b"
+
+          # embedding models
+          "nomic-embed-text:latest"
+        ];
+      };
+
+      tailscale = {
+        enable = true;
+        authKeyFile = config.sops.secrets."vpn-keys/tailscale-authkey/twilight".path;
+        useRoutingFeatures = "both";
+        extraUpFlags = [
+          "--advertise-exit-node"
+          "--advertise-routes=192.168.0.0/24"
+        ];
+        extraSetFlags = [
+          "--advertise-exit-node"
+          "--advertise-routes=192.168.0.0/24"
+        ];
+      };
+
+      syncthing.enable = true;
+    };
+
+    # Enable network-online.target for better network dependency handling
+    systemd.services.NetworkManager-wait-online.enable = true;
+
+    environment.systemPackages = with pkgs; [
+      cachefilesd
+    ];
+    hardware.steam-hardware.enable = true; # Provides udev rules for controller, HTC vive, and Valve Index
+
+    networking = {
+      networkmanager.enable = true;
+      hostName = "twilight"; # Define your hostname.
+    };
+
+    # enabled virtualisation for docker
+    # virtualisation.docker.enable = true;
+
+    # Enable touchpad support (enabled default in most desktopManager).
+    # services.xserver.libinput.enable = true;
+
+    # This value determines the NixOS release from which the default
+    # settings for stateful data, like file locations and database versions
+    # on your system were taken. It's perfectly fine and recommended to leave
+    # this value at the release version of the first install of this system.
+    # Before changing this value read the documentation for this option
+    # (e.g. man configuration.nix or on https://nixos.org/nixos/options.html).
+    system.stateVersion = "23.05"; # Did you read the comment?
+  };
+}