diff --git a/disko/minecraft.nix b/disko/minecraft.nix
index b2212bb..96d05b4 100644
--- a/disko/minecraft.nix
+++ b/disko/minecraft.nix
@@ -1,7 +1,7 @@
 _: {
   disk = {
     main = {
-      device = "/dev/disk/by-id/scsi-0QEMU_QEMU_HARDDISK_51056934";
+      device = "/dev/disk/by-id/scsi-0QEMU_QEMU_HARDDISK_51091227";
       type = "disk";
       content = {
         type = "gpt";
diff --git a/hosts/minecraft/main.nix b/hosts/minecraft/main.nix
index 90cf7f3..434df85 100644
--- a/hosts/minecraft/main.nix
+++ b/hosts/minecraft/main.nix
@@ -64,9 +64,9 @@
     loader = {
       efi = {
         canTouchEfiVariables = true;
-        efiSysMountPoint = "/boot"; # ← use the same mount point here.
+        efiSysMountPoint = "/boot";
       };
-      grub = {
+      systemd-boot = {
         enable = true;
         configurationLimit = 10;
       };
diff --git a/hosts/minecraft/server.nix b/hosts/minecraft/server.nix
index da25575..b6de3dc 100644
--- a/hosts/minecraft/server.nix
+++ b/hosts/minecraft/server.nix
@@ -21,27 +21,28 @@
     after = [ "network.target" ];
     script = ''
       ${lib.getExe self'.packages.fabric} \
-        -Xms6G \
-        -Xmx6G \
-        -XX:+UseG1GC \
-        -XX:+ParallelRefProcEnabled \
-        -XX:MaxGCPauseMillis=200 \
+        -Xms10G \
+        -Xmx10G \
         -XX:+UnlockExperimentalVMOptions \
-        -XX:+DisableExplicitGC \
+        -XX:+UnlockDiagnosticVMOptions \
+        -XX:+AlwaysActAsServerClassMachine \
         -XX:+AlwaysPreTouch \
-        -XX:G1NewSizePercent=30 \
-        -XX:G1MaxNewSizePercent=40 \
-        -XX:G1HeapRegionSize=8M \
-        -XX:G1ReservePercent=20 \
-        -XX:G1HeapWastePercent=5 \
-        -XX:G1MixedGCCountTarget=4 \
-        -XX:InitiatingHeapOccupancyPercent=15 \
-        -XX:G1MixedGCLiveThresholdPercent=90 \
-        -XX:G1RSetUpdatingPauseTimePercent=5 \
-        -XX:SurvivorRatio=32 \
+        -XX:+DisableExplicitGC \
+        -XX:+UseNUMA \
+        -XX:NmethodSweepActivity=1 \
+        -XX:ReservedCodeCacheSize=400M \
+        -XX:NonNMethodCodeHeapSize=12M \
+        -XX:ProfiledCodeHeapSize=194M \
+        -XX:NonProfiledCodeHeapSize=194M \
+        -XX:-DontCompileHugeMethods \
+        -XX:MaxNodeLimit=240000 \
+        -XX:NodeLimitFudgeFactor=8000 \
+        -XX:+UseVectorCmov \
         -XX:+PerfDisableSharedMem \
-        -XX:MaxTenuringThreshold=1 \
-        -Dusing.aikars.flags=https://mcflags.emc.gs-Daikars.new.flags=true \
+        -XX:+UseFastUnorderedTimeStamps \
+        -XX:+UseCriticalJavaThreadPriority \
+        -XX:ThreadPriorityPolicy=1 \
+        -XX:AllocatePrefetchStyle=3
     '';
 
     serviceConfig = {