♻️ consolidate nix configs

nix/modules/gitea/nginx.nix

@@ -0,0 +1,20 @@
+_:
+
+{
+  services.nginx = {
+    enable = true;
+    virtualHosts = {
+      "walkah.dev" = {
+        forceSSL = true;
+        enableACME = true;
+        locations."/" = {
+          proxyPass = "http://100.111.208.75:8003";
+          proxyWebsockets = true;
+          extraConfig = ''
+            client_max_body_size 0;
+          '';
+        };
+      };
+    };
+  };
+}