RPi Zero W, set up as an stand-alone wifi access point, running off a usb battery pack. I used it with an ssh client on my phone for Python code and writing whi

RPi Zero W, set up as an stand-alone wifi access point, running off a usb battery pack. I used it with an ssh client on my phone for Python code and writing while traveling. Old Thinkpad with no battery just after ext3 with journaling came out. I would yank the cord without shutting it down. Never lost data ;-)