diff --git a/roles/pi_disable_onboard_bluetooth/handlers/main.yml b/roles/pi_disable_onboard_bluetooth/handlers/main.yml
index a8f18bd..b9b0c7a 100644
--- a/roles/pi_disable_onboard_bluetooth/handlers/main.yml
+++ b/roles/pi_disable_onboard_bluetooth/handlers/main.yml
@@ -1,3 +1,7 @@
 ---
-- name: Reboot
+# Handler names are play-global: if several roles define the same name, only the
+# last one defined runs, under *that* role's `when:`. A shared "Reboot" therefore
+# never fired while pi_disable_onboard_bluetooth (usually switched off) defined one
+# too. Keep this name unique to the role.
+- name: Reboot after disabling onboard Bluetooth
   ansible.builtin.reboot:
diff --git a/roles/pi_disable_onboard_bluetooth/tasks/main.yml b/roles/pi_disable_onboard_bluetooth/tasks/main.yml
index cc7d963..0871ea1 100644
--- a/roles/pi_disable_onboard_bluetooth/tasks/main.yml
+++ b/roles/pi_disable_onboard_bluetooth/tasks/main.yml
@@ -4,4 +4,4 @@
     path: /boot/firmware/config.txt
     regexp: "^#?dtoverlay=disable-bt"
     line: "dtoverlay=disable-bt"
-  notify: Reboot
+  notify: Reboot after disabling onboard Bluetooth
diff --git a/roles/pi_hifiberry_amp/handlers/main.yml b/roles/pi_hifiberry_amp/handlers/main.yml
index a8f18bd..456b929 100644
--- a/roles/pi_hifiberry_amp/handlers/main.yml
+++ b/roles/pi_hifiberry_amp/handlers/main.yml
@@ -1,3 +1,7 @@
 ---
-- name: Reboot
+# Handler names are play-global: if several roles define the same name, only the
+# last one defined runs, under *that* role's `when:`. A shared "Reboot" therefore
+# never fired while pi_disable_onboard_bluetooth (usually switched off) defined one
+# too. Keep this name unique to the role.
+- name: Reboot after HiFiBerry boot config change
   ansible.builtin.reboot:
diff --git a/roles/pi_hifiberry_amp/tasks/main.yml b/roles/pi_hifiberry_amp/tasks/main.yml
index 59f0e17..2e364ee 100644
--- a/roles/pi_hifiberry_amp/tasks/main.yml
+++ b/roles/pi_hifiberry_amp/tasks/main.yml
@@ -4,13 +4,13 @@
     path: /boot/config.txt
     regexp: "^#?dtparam=audio=on"
     line: "#dtparam=audio=on"
-  notify: Reboot
+  notify: Reboot after HiFiBerry boot config change
 - name: Activate Hifiberry
   ansible.builtin.lineinfile:
     path: /boot/firmware/config.txt
     regexp: "^#?dtoverlay=hifiberry-amp"
     line: "dtoverlay={{ hifiberry_overlay }}"
-  notify: Reboot
+  notify: Reboot after HiFiBerry boot config change
 - name: Lift the Pi 5's USB current cap when the HiFiBerry board powers it
   # A Pi 5 fed over the GPIO header has no USB-C power negotiation, so it assumes a
   # weak supply and limits USB ports to 600mA. Unknown to a Pi 4, which ignores it.
@@ -20,4 +20,4 @@
     line: "usb_max_current_enable=1"
     insertafter: EOF
   when: hifiberry_powers_pi
-  notify: Reboot
+  notify: Reboot after HiFiBerry boot config change
diff --git a/roles/pi_standard_setup/handlers/main.yml b/roles/pi_standard_setup/handlers/main.yml
index 8ef7e11..5ff8d7b 100644
--- a/roles/pi_standard_setup/handlers/main.yml
+++ b/roles/pi_standard_setup/handlers/main.yml
@@ -3,7 +3,11 @@
   ansible.builtin.service:
     name: sshd
     state: restarted
-- name: Reboot
+# Handler names are play-global: if several roles define the same name, only the
+# last one defined runs, under *that* role's `when:`. A shared "Reboot" therefore
+# never fired while pi_disable_onboard_bluetooth (usually switched off) defined one
+# too. Keep this name unique to the role.
+- name: Reboot after standard setup
   ansible.builtin.reboot:
 - name: Restart raspi-leds-off
   ansible.builtin.service:
diff --git a/roles/pi_standard_setup/tasks/main.yml b/roles/pi_standard_setup/tasks/main.yml
index 51e005c..a83e1b5 100644
--- a/roles/pi_standard_setup/tasks/main.yml
+++ b/roles/pi_standard_setup/tasks/main.yml
@@ -61,7 +61,7 @@
   when: pi_standard_setup_new_hostname | length > 0 and pi_standard_setup_pi_hostname.stdout != pi_standard_setup_new_hostname
   register: pi_standard_setup_set_hostname
   changed_when: true
-  notify: Reboot
+  notify: Reboot after standard setup
 - name: Get hostname
   ansible.builtin.command: "raspi-config nonint get_hostname"
   register: pi_standard_setup_pi_hostname
@@ -121,7 +121,7 @@
     cache_valid_time: 7200
     state: present
   when: pi_standard_setup_install_pi5_kernel
-  notify: Reboot
+  notify: Reboot after standard setup
 - name: Copy vim config
   ansible.builtin.copy:
     src: vimrc