This Slim case for a (directly soldered) XIAO nRF52840 & Wio-SX1262 Kit and a 50x60x7mm LiPo.
To increase the visibility of the status LED, stick a short piece of transparent filament in the bigger of the two holes and trim it flush.
Parts list:
Note that directly connecting the buzzer to the XIAO is probably not a good idea. There should be enough room near the SMA Pigtail to fit some protection/drive circuitry.
The author marked this model as their own original creation.