Cheap DIY UPDI USB programmer

A small two part enclosure which fits inside an Arduino Nano board. Has two holes in front and back (for USB and a 6 pin header). Used for a DIY USB UPDI programmer for programming Attiny and other MCUs which have UPDI programming interface.
Instead of an UPDI programmer, the enclosure could be also used for your other personal projects.

You can read more about it, and how to actually build an electronics device here:
https://daumemo.com/diy-updi-usb-programmer-which-can-be-made-with-cheap-hardware/