diff --git a/.config/shell/functions b/.config/shell/functions
index bddfb11..a2be5d3 100644
--- a/.config/shell/functions
+++ b/.config/shell/functions
@@ -95,7 +95,7 @@ swap() {
 
 # Task management & time tracking
 t() {
-  if test "$#" -eq 0
+  if test "$#" -eq 0 && which tn >/dev/null
   then tn
   else if test "$1" = "do"
     then test "$2" -gt 0 2>/dev/null && task mod sched:today "${@:2}" || task add sched:today "${@:2}"
diff --git a/.config/yadm/bootstrap b/.config/yadm/bootstrap
index 05a40b4..d3b7c95 100755
--- a/.config/yadm/bootstrap
+++ b/.config/yadm/bootstrap
@@ -11,7 +11,7 @@ sudo sysctl --system
 
 highlight "Default sudoers configuration"
 echo "Defaults	editor=/usr/bin/nvim" | sudo tee /etc/sudoers.d/editor
-echo "Defaults	timestamp_timeout=20" | sudo tee /etc/sudoers.d/timeout
+echo "Defaults	timestamp_timeout=120" | sudo tee /etc/sudoers.d/timeout
 highlight "password-free reboot"
 echo "$USER ALL = NOPASSWD: /sbin/halt, /sbin/reboot, /usr/sbin/reboot, /sbin/poweroff, /usr/sbin/shutdown" | sudo tee /etc/sudoers.d/shutdown