Initial commit: NixOS flake with Cursor 1.3.9

- Complete NixOS configuration with Cursor AppImage
- Development environment with Node.js, Python, Rust
- Modern shell setup with Zsh and Starship
- AppImage support and desktop integration
- Comprehensive documentation and quick start guide

flake.nix

@@ -0,0 +1,40 @@
+{
+  description = "NixOS configuration with Cursor 1.3.9 AppImage";
+
+  inputs = {
+    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
+    home-manager = {
+      url = "github:nix-community/home-manager";
+      inputs.nixpkgs.follows = "nixpkgs";
+    };
+  };
+
+  outputs = { self, nixpkgs, home-manager }: {
+    nixosConfigurations = {
+      cursor-system = nixpkgs.lib.nixosSystem {
+        system = "x86_64-linux";
+        modules = [
+          ./configuration.nix
+          home-manager.nixosModules.home-manager
+          {
+            home-manager.useGlobalPkgs = true;
+            home-manager.useUserPackages = true;
+            home-manager.users.liam = import ./home.nix;
+          }
+        ];
+      };
+      test-system = nixpkgs.lib.nixosSystem {
+        system = "x86_64-linux";
+        modules = [
+          ./test-configuration.nix
+          home-manager.nixosModules.home-manager
+          {
+            home-manager.useGlobalPkgs = true;
+            home-manager.useUserPackages = true;
+            home-manager.users.liam = import ./test-home.nix;
+          }
+        ];
+      };
+    };
+  };
+}