xrootdatetime: fixing crash on initial boot

xrootdatetime: trying to fix crashes
xrootdatetime: allow errors

modules/dwm.nix

@@ -44,18 +44,28 @@ in
     };
 
     systemd.user.services.xrootdatetime = {
-      script = ''
-        while true; do
-          if [[ "$(${getExe pkgs.pamixer} --default-source --get-mute)" == "true" ]]; then
-            mutedString="Mic Muted "
-          else
-            mutedString=""
-          fi
-          dateTime=$(date +"<-- %A, %B %d -- %H:%M -->")
-          ${getExe pkgs.xorg.xsetroot} -name "$mutedString$dateTime"
-          sleep 1 
-        done
-      '';
+      script =
+        let
+          pamixer = getExe pkgs.pamixer;
+          xsetroot = getExe pkgs.xorg.xsetroot;
+        in
+          /* bash */ ''
+          while true; do
+            set +e # allow errors
+            mute="$(${pamixer} --default-source --get-mute)"
+            set -e # disallow errors
+
+            if [[ "$mute" == "true" ]]; then
+              mutedString="Mic Muted "
+            else
+              mutedString=""
+            fi
+
+            dateTime=$(date +"<-- %A, %B %d -- %H:%M -->")
+            ${xsetroot} -name "$mutedString$dateTime"
+            sleep 1
+          done
+        '';
       wantedBy = [ "graphical-session.target" ];
       after = [ "pipewire.service" ];
       serviceConfig.Restart = "on-failure";