Updated Bluetooth-Serial notes

Author: haukex

bt-serial/BluetoothSerial.md

@@ -1,25 +1,27 @@
 Serial-to-Bluetooth Bridge
 ==========================
 
-- Tested on Raspberry Pi Zero W with Raspberry Pi OS Lite 32-bit 2025-10-01 (trixie)
+- Tested on Raspberry Pi Zero W with Raspberry Pi OS Lite 32-bit 2025-11-24 (trixie)
   - A fairly large electrolytic capacitor (e.g. 470-1000uF) on the 5V pins is useful
     to handle current spikes and prevent reboots when plugging in OTG cable.
-- Base Installation: <https://github.com/haukex/raspinotes/blob/c3727f9b/BaseInstall.md>
+- Base Installation: <https://github.com/haukex/raspinotes/blob/54425986/BaseInstall.md>
+  - In raspi-config, enable WLAN power saving
   - With overlay filesystem, ufw, proxychains
   - Without fail2ban, crontab, mail, unattended upgrades
-  - In raspi-config, enable WLAN power saving
 
 Setup on RPi:
 
     git clone https://github.com/haukex/raspinotes.git ~/code/raspinotes
+    echo "~/code/raspinotes" >>~/.git-mysync  # optional, if you're using my tool
 
     ~/code/raspinotes/bt-serial/install.sh
 
     sudo vi /etc/systemd/system/bt-serial-bridge.service
       # Adjust settings (UUID, ports, baud rate etc.) in that file as needed
+      # Run `bt_serial_bridge.py --help` for help
       # BT UUID should be random, *except* xxxxxxxx-0000-1000-8000-00805f9b34fb
     # Just for example, this replaces the UUID by a random one:
-    sudo perl -wMstrict -i -pe 's/--bt-uuid=\K[-0-9a-fA-F]{36}\b/chomp(my $u=lc qx#uuid -v4#);say STDERR $u;$u/e' /etc/systemd/system/bt-serial-bridge.service
+    sudo perl -wM5.014 -i -pe 's/--bt-uuid=\K[-0-9a-fA-F]{36}\b/chomp(my $u=lc qx#uuid -v4#);say STDERR $u;$u/e' /etc/systemd/system/bt-serial-bridge.service
 
     sudo rfkill unblock bluetooth
 
@@ -28,9 +30,10 @@ Setup on RPi:
       AlwaysPairable = true
       JustWorksRepairing = always
 
+    # A "pretty hostname" of your choice:
     echo PRETTY_HOSTNAME="Ser-BT-1" | sudo tee /etc/machine-info
 
-    sudo perl -wMstrict -i -pe 's#^ExecStart=.*bluetoothd\K\s*$# --compat\n#' /lib/systemd/system/bluetooth.service
+    sudo perl -wM5.014 -i -pe 's#^ExecStart=.*bluetoothd\K\s*$# --compat\n#' /lib/systemd/system/bluetooth.service
 
     sudo systemctl daemon-reload
     sudo systemctl restart bluetooth
@@ -55,10 +58,11 @@ Debugging notes:
 
 Cloning notes:
 
+- Set a new `PRETTY_HOSTNAME` in `/etc/machine-info`.
 - Set a new UUID in `/etc/systemd/system/bt-serial-bridge.service`, e.g. via the example command shown above.
 
 
-<!-- spell: ignore Mstrict Pairable bluetoothd fakepty icanon rfkill socat wlan trixie proxychains raspi raspinotes -->
+<!-- spell: ignore Pairable bluetoothd fakepty icanon rfkill socat wlan trixie proxychains raspi raspinotes mysync -->
 
 Author, Copyright, and License
 ------------------------------