Merge pull request 'nginx: set worker_processes to number of CPU cores' (#146) from feat/nginx-tuning into main

Reviewed-on: #146
Reviewed-by: b12f <b12f@noreply.git.pub.solar>

hosts/nachtigall/apps/nginx.nix

@@ -24,6 +24,13 @@ in
       # https://my.f5.com/manage/s/article/K51798430
       proxy_headers_hash_bucket_size 128;
     '';
+    appendConfig = ''
+      # Number of CPU cores
+      worker_processes 8;
+    '';
+    eventsConfig = ''
+      worker_connections 1024;
+    '';
   };
 
   security.acme = {