feat: Added a generic template.

templates/default/flake.nix

@@ -0,0 +1,25 @@
+{
+  description = "A very basic flake";
+
+  inputs = {
+    sbrow.url = "github:sbrow/nix";
+  };
+
+  outputs = { self, nixpkgs, sbrow }: {
+    nixosModules.default = { config, ... }: {
+      config = {
+        /* Your config here */
+      };
+    };
+
+    # A Vagrant box for testing
+    nixosConfigurations.vagrant = nixpkgs.lib.nixosSystem {
+      system = "x86_64-linux";
+      modules = [
+        (nixpkgs + "/nixos/modules/virtualisation/virtualbox-image.nix")
+        sbrow.nixosModules.vagrant
+        self.nixosModules.default
+      ];
+    };
+  };
+}