This is where I SHOULD document the DCC decoder project for future reference

Firmware is written in arduino, the ino file is "Dec_Dir_and_fade_pruned_attiny85"
Need the megaTinyCore board library
The schematic and PCB design was made in kicad
An attiny1616 is used on the actual board, not the attiny85

Tinymegacore github:
[[https://github.com/SpenceKonde/megaTinyCore/blob/master/Installation.md|tmc github]]