diff --git a/hosts/workstation/systemd.nix b/hosts/workstation/systemd.nix
index f83ef11..103e377 100644
--- a/hosts/workstation/systemd.nix
+++ b/hosts/workstation/systemd.nix
@@ -50,7 +50,6 @@ in {
         };
         check-nic = {
           description = "Adjust tailscale MTU based on location";
-          unitConfig = { Type = "simple"; };
           serviceConfig = {
             Type = "oneshot";
             Environment =
@@ -58,24 +57,62 @@ in {
             ExecStart = "/home/don/bin/check-nic";
           };
         };
+        task-sync = {
+          description = "Sync taskwarrior";
+          serviceConfig = {
+            Type = "oneshot";
+            Environment =
+              "PATH=/run/current-system/sw/bin:/etc/profiles/per-user/don/bin:/home/don/bin";
+            ExecStart = "/home/don/bin/sync-task";
+          };
+        };
+        vdirsyncer = {
+          description = "Synchronize calendars and contacts";
+          serviceConfig = {
+            Type = "oneshot";
+            Environment =
+              "PATH=/run/current-system/sw/bin:/etc/profiles/per-user/don/bin:/home/don/bin";
+            ExecStart = "/etc/profiles/per-user/don/bin/vdirsyncer sync";
+          };
+        };
       };
       timers = {
         check-nic = {
+          description = "Adjust tailscale MTU based on location";
           wantedBy = [ "timers.target" ];
-          partOf = [ "check-nic.service" ];
           timerConfig = {
-            OnCalendar = "1m";
+            OnUnitActiveSec = "1min";
+            OnBootSec = "1m";
+            AccuracySec = "1m";
             Unit = "check-nic.service";
           };
         };
         detect-reboot-for-upgrade = {
+          description = "Check if need to reboot for new kernel";
           wantedBy = [ "timers.target" ];
-          partOf = [ "detect-reboot-for-upgrade.service" ];
           timerConfig = {
-            OnCalendar = "hourly";
+            OnUnitActiveSec = "hourly";
             Unit = "detect-reboot-for-upgrade.service";
           };
         };
+        task-sync = {
+          description = "Sync taskwarrior";
+          wantedBy = [ "timers.target" ];
+          timerConfig = {
+            OnUnitActiveSec = "5min";
+            OnBootSec = "1m";
+            AccuracySec = "1m";
+            Unit = "task-sync.service";
+          };
+        };
+        vdirsyncer = {
+          description = "Synchronize calendars and contacts";
+          wantedBy = [ "timers.target" ];
+          timerConfig = {
+            OnUnitActiveSec = "5min";
+            Unit = "vdirsyncer.service";
+          };
+        };
       };
     };
   };