reduced power draw + update

configuration.nix

@@ -125,6 +125,21 @@
       #!/bin/sh
       tmux -S /run/minecraft/${service_configs.minecraft.server_name}.sock attach
     '')
+
+    (pkgs.writeScriptBin "disk-smart-test" ''
+      #!/bin/sh
+      set -e
+      if [[ $EUID -ne 0 ]]; then
+        echo "This command requires root."
+        exit 2
+      fi
+
+      DISKS=$(${pkgs.coreutils}/bin/ls /dev/sd* | ${pkgs.gnugrep}/bin/grep -v "[0-9]$")
+      for i in $DISKS; do
+        ${pkgs.coreutils}/bin/echo -n "$i "
+        ${pkgs.smartmontools}/bin/smartctl -a "$i" | ${pkgs.gnugrep}/bin/grep "SMART overall-health self-assessment test result:" | ${pkgs.coreutils}/bin/cut -d' ' -f6
+      done
+    '')
   ];
 
   services.zfs = {
@@ -136,6 +151,8 @@
     let
       no-rgb = pkgs.writeScriptBin "no-rgb" ''
         #!/bin/sh
+        set -e
+
         NUM_DEVICES=$(${pkgs.openrgb}/bin/openrgb --noautoconnect --list-devices | ${pkgs.gnugrep}/bin/grep -E '^[0-9]+: ' | ${pkgs.coreutils}/bin/wc -l)
 
         for i in $(${pkgs.coreutils}/bin/seq 0 $(($NUM_DEVICES - 1))); do