diff --git a/hosts/mediawiki/default.nix b/hosts/mediawiki/default.nix
index 33ffc9fc..0d89e167 100644
--- a/hosts/mediawiki/default.nix
+++ b/hosts/mediawiki/default.nix
@@ -6,7 +6,12 @@ in
 {
   c3d2.deployment.server = "server10";
 
-  networking.hostName = "mediawiki";
+  microvm.mem = 1024;
+
+  networking = {
+    firewall.allowedTCPPorts = [ 80 443 ]; # httpd, not nginx :(
+    hostName = "mediawiki";
+  };
 
   services = {
     logrotate.checkConfig = false;
@@ -182,6 +187,10 @@ in
       uploadsDir = "/var/lib/mediawiki/uploads";
     };
 
+    phpfpm.phpPackage = pkgs.php.buildEnv {
+      extensions = { all, enabled }: enabled ++ (with all; [ apcu ]);
+    };
+
     postgresql = {
       enable = true;
       authentication = lib.mkForce ''