diff --git a/operating-systems/buer.scm b/operating-systems/buer.scm
index f582fa6..19184be 100644
--- a/operating-systems/buer.scm
+++ b/operating-systems/buer.scm
@@ -51,6 +51,7 @@
 
   #|Radix system|#
   #|S|# #:use-module (radix system setuid)
+  #|M|# #:use-module (radix system monitoring)
 
   #|Buer files|#
   #|S|# #:use-module ((buer files substitute-keys) #:prefix public-key:)
@@ -80,6 +81,7 @@
                                  "/backgrounds/guix-silver-16-9.svg"))
              (gfxmode `("1280x720x32"))))))
 
+   (kernel linux-libre-6.7)
    (kernel-arguments
     `("modprobe.blacklist=usbmouse,usbkbd,pcspkr"
       "thinkpad_acpi.fan_control=1"
@@ -270,7 +272,7 @@
           #|Memory management services|#
           (service zram-device-service-type
                    (zram-device-configuration
-                    (size "2G")
+                    (size (round/ (ram-total) 4))
                     (compression-algorithm 'lz4)))
 
           #|Doas configuration services|#