feat: Add a recipe book

Created a recipe section in the blog from existing markdown content.

common.nginx.nix

@@ -0,0 +1,45 @@
+{ config, pkgs, lib, ... }:
+
+{
+  # Common configuration shared between staging and prod
+  
+  # This file contains nginx settings that are identical across environments
+  # Import this in both staging.nginx.nix and prod.nginx.nix
+  
+  services.nginx = {
+    # Recommended settings
+    recommendedGzipSettings = true;
+    recommendedOptimisation = true;
+    recommendedProxySettings = true;
+  };
+  
+  # Common location configurations that can be reused
+  # These are defined as library functions
+  lib.nginxLocations = {
+    # Standard root location with SSI support
+    rootLocation = {
+      index = "index.html";
+      tryFiles = "$uri $uri/ =404";
+      extraConfig = ''
+        # Enable Server Side Includes for navbar/footer includes
+        ssi on;
+      '';
+    };
+    
+    # Private blog articles location with HTTP basic authentication
+    privateLocation = {
+      extraConfig = ''
+        auth_basic "Private Articles";
+        auth_basic_user_file /srv/nginx/.htpasswd;
+        
+        # Enable Server Side Includes
+        ssi on;
+      '';
+    };
+    
+    # Common extraConfig for custom 404
+    custom404 = ''
+      error_page 404 /404.html;
+    '';
+  };
+}