The pycubedmini branch is a fork of version 7.3.x of circuitpython - the latest stable release.
PyCubed Mini Firmware files are located under ports/atmel-samd/boards/pycubedmini/
If you encounter any issues, refer to this adafruit article https://learn.adafruit.com/building-circuitpython/build-circuitpython
git clone git@github.com:PyCubed-Mini/circuitpython.git
cd circuitpython
make fetch-submodules
# Install pip if it is not already installed (Linux only)
sudo apt install python3-pip
# Install needed Python packages from pypi.org.
pip3 install --upgrade -r requirements-dev.txt
pip3 install --upgrade -r requirements-doc.txt
make -C mpy-cross
cd ports/atmel-samd
make BOARD=pycubedmini
Built UF2 files can be found under ./build-pycubedmini/firmware.uf2