I had some spare time and a pi zero sitting around so why not make it a NAS.
Super simple build, solder on a Edimax 7811un, powered by an adafruit board and a fat 1400MAh battery. The sd card is a random purchased from the wish app that does show up with 256GB of storage however ive never tried filling it to capacity to verify how true that is.
Loaded it with a normal raspian image, set the Pi to create a hotspot on boot, and enabled SMB.
Next up will be some kind of web page front like the pirate boxes so i can upload things from mobile devices.