diff --git a/hosts/europa/default.nix b/hosts/europa/default.nix
index ff21736..984cac3 100644
--- a/hosts/europa/default.nix
+++ b/hosts/europa/default.nix
@@ -220,6 +220,8 @@ in {
     nix-top
     nmap
     obsidian
+    pharo
+    pharo-launcher
     rofi
     signal-desktop
     tcpdump
@@ -231,5 +233,21 @@ in {
     zig
   ];
 
+  # for Pharo
+  security.pam.loginLimits = [
+    {
+      domain = "qbit";
+      type = "hard";
+      item = "rtprio";
+      value = "2";
+    }
+    {
+      domain = "qbit";
+      type = "soft";
+      item = "rtprio";
+      value = "2";
+    }
+  ];
+
   system.stateVersion = "21.11";
 }