Fixes sysupdate script.

packages/sysupdate/default.nix

@@ -11,15 +11,18 @@ pkgs.writeShellApplication {
   ];
 
   text = ''
-    NIXCONF="''${NIXCONF:-.}"
+    NIXCONF="''${NIXCONF:-/etc/nixos}"
     echo Building config from flake at: "$NIXCONF" 1>&2
-    [[ "''${1:-}" == "home" ]] && \
-      home-manager switch -L --flake "$NIXCONF" |& nom && \
-      exit 0
-    [ "$EUID" -eq 0 ] && \
+    if [[ "''${1:-}" == "home" ]]; then
+      home-manager switch -L --flake "$NIXCONF" |& nom
+      exit $?
+    fi
+    if [ "$EUID" -ne 0 ]; then
+      echo Please rerun as root. 1>&2
+      exit 1
+    else
       nixos-rebuild switch --log-format internal-json -v --flake "$NIXCONF" |& nom --json && \
-      exit 0
-    echo Please rerun as root. 1>&2
-    exit 1
+      exit $?
+    fi
   '';
 }