https://docs.zephyrproject.org/latest/boards/pjrc/teensy4/doc/index.html
https://docs.zephyrproject.org/latest/develop/getting_started/index.html

replace /path/to/project/ with the actual path to you project

Create, configure and enter virtual enviorment
    python3 -m venv /path/to/project/.venv
    source /path/to/project/.venv/bin/activate
    pip install west
    west init /path/to/project/
    cd /path/to/project/
    west update
    west zephyr-export
    west packages pip --install

Install zephyr SDK
    cd /path/to/project/zephyr
    west sdk install

build project for teensy 4.1:
    west build -b teensy41 /path/to/project/

flash project onto the device:
    cd /path/to/project/
    west flash