2 layers50.8 × 22.9 mm

KiCad boards from 4 GitHub repositories tagged “kicad-template”, the most starred first; open any of them in PCBKit.


joustava/kicad-template-arduino-nano-shield
Arduino Nano Shield template project for KiCad EDA

makeristic/Adafruit_Feather
KiCad 5 template for Adafruit Feather-compatible boards with Micro-USB, JST PH battery connector, headers, and mounting holes.

makeristic/Adafruit_Feather_USB-C
KiCad 5 template for USB-C Adafruit Feather-compatible boards with JST PH battery connector, headers, and mounting holes.