fuji: perf optimizations

fuji/configuration.nix

@@ -58,6 +58,8 @@ in
   };
 
   nix = {
+    daemonCPUSchedPolicy = "idle";
+    daemonIOSchedClass = "idle";
     optimise.automatic = true;
     gc.automatic = true;
     gc.options = "--delete-older-than 7d";
@@ -84,6 +86,10 @@ in
     initrd.compressor = "zstd";
     initrd.kernelModules = [ ];
     initrd.systemd.enable = true;
+    initrd.luks.devices."cryptroot" = {
+      allowDiscards = true;
+      bypassWorkqueues = true;
+    };
     binfmt.emulatedSystems = [
       "wasm32-wasi"
       "x86_64-windows"
@@ -422,6 +428,9 @@ in
     openssh.enable = true;
     power-profiles-daemon.enable = false;
     printing.enable = true;
+    scx.enable = true;
+    scx.scheduler = "scx_lavd";
+    thermald.enable = true;
     userborn.enable = true;
     upower.enable = lib.mkForce false;