diff --git a/nix/default.nix b/nix/default.nix
index a9e34ab..1580f85 100644
--- a/nix/default.nix
+++ b/nix/default.nix
@@ -93,6 +93,8 @@
       radvd
       minicom
       socat
+      pciutils
+      dmidecode
     ];
 
     nixpkgs.overlays = [
diff --git a/nix/machines/vpay.nix b/nix/machines/vpay.nix
index 49a1a67..7e67f33 100644
--- a/nix/machines/vpay.nix
+++ b/nix/machines/vpay.nix
@@ -4,7 +4,7 @@
     hypervisorName = "lewis";
 
     nixosModule = {
-      microvm.balloonMem = 5120;
+      microvm.balloonMem = 4600;
 
       lab = {
         dockerSwarm.enable = true;